LZ4: New compression library.

Message ID 1516551870-15621-1-git-send-email-erik.kapfer@ipfire.org
State Dropped
Headers
Series LZ4: New compression library. |

Commit Message

Erik Kapfer Jan. 22, 2018, 3:24 a.m. UTC
  New lossless data compression algorithm.

Signed-off-by: Erik Kapfer <erik.kapfer@ipfire.org>
---
 config/rootfiles/common/lz4                    | 17 +++++
 lfs/lz4                                        | 87 ++++++++++++++++++++++++++
 make.sh                                        |  1 +
 src/patches/lz4-1.8.1.2_mod_install_path.patch | 36 +++++++++++
 4 files changed, 141 insertions(+)
 create mode 100644 config/rootfiles/common/lz4
 create mode 100644 lfs/lz4
 create mode 100644 src/patches/lz4-1.8.1.2_mod_install_path.patch
  

Comments

Michael Tremer Jan. 22, 2018, 6:02 a.m. UTC | #1
Hello,

good patch. Just a few minor things...

On Sun, 2018-01-21 at 17:24 +0100, Erik Kapfer wrote:
> New lossless data compression algorithm.
> 
> Signed-off-by: Erik Kapfer <erik.kapfer@ipfire.org>
> ---
>  config/rootfiles/common/lz4                    | 17 +++++
>  lfs/lz4                                        | 87 ++++++++++++++++++++++++++
>  make.sh                                        |  1 +
>  src/patches/lz4-1.8.1.2_mod_install_path.patch | 36 +++++++++++
>  4 files changed, 141 insertions(+)
>  create mode 100644 config/rootfiles/common/lz4
>  create mode 100644 lfs/lz4
>  create mode 100644 src/patches/lz4-1.8.1.2_mod_install_path.patch
> 
> diff --git a/config/rootfiles/common/lz4 b/config/rootfiles/common/lz4
> new file mode 100644
> index 0000000..3b8bc2f
> --- /dev/null
> +++ b/config/rootfiles/common/lz4
> @@ -0,0 +1,17 @@
> +usr/bin/lz4
> +#usr/bin/lz4c
> +#usr/bin/lz4cat
> +#usr/bin/unlz4
> +#usr/include/lz4.h
> +#usr/include/lz4frame.h
> +#usr/include/lz4frame_static.h
> +#usr/include/lz4hc.h
> +#usr/lib/liblz4.a
> +usr/lib/liblz4.so

There is no need to ship the *.so file. Just the *.so.* files are
needed.

> +usr/lib/liblz4.so.1
> +usr/lib/liblz4.so.1.8.1
> +#usr/lib/pkgconfig/liblz4.pc
> +#usr/share/man/man1/lz4.1
> +#usr/share/man/man1/lz4c.1
> +#usr/share/man/man1/lz4cat.1
> +#usr/share/man/man1/unlz4.1
> diff --git a/lfs/lz4 b/lfs/lz4
> new file mode 100644
> index 0000000..6f2bef2
> --- /dev/null
> +++ b/lfs/lz4
> @@ -0,0 +1,87 @@
> +###############################################################################
> +#                                                                             #
> +# IPFire.org - A linux based firewall                                         #
> +# Copyright (C) 2018  IPFire Team  <info@ipfire.org>                          #
> +#                                                                             #
> +# This program is free software: you can redistribute it and/or modify        #
> +# it under the terms of the GNU General Public License as published by        #
> +# the Free Software Foundation, either version 3 of the License, or           #
> +# (at your option) any later version.                                         #
> +#                                                                             #
> +# This program is distributed in the hope that it will be useful,             #
> +# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
> +# GNU General Public License for more details.                                #
> +#                                                                             #
> +# You should have received a copy of the GNU General Public License           #
> +# along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
> +#                                                                             #
> +###############################################################################
> +
> +###############################################################################
> +# Definitions
> +###############################################################################
> +
> +include Config
> +
> +VER        = 1.8.1.2
> +
> +THISAPP    = lz4-$(VER)
> +DL_FILE    = $(THISAPP).tar.gz
> +DL_FROM    = $(URL_IPFIRE)
> +DIR_APP    = $(DIR_SRC)/$(THISAPP)
> +TARGET     = $(DIR_INFO)/$(THISAPP)
> +PROG       = lz4
> +
> +DEPS       = ""
> +
> +###############################################################################
> +# Top-level Rules
> +###############################################################################
> +
> +objects = $(DL_FILE)
> +
> +$(DL_FILE) = $(DL_FROM)/$(DL_FILE)
> +
> +$(DL_FILE)_MD5 = 343538e69ba752a386c669b1a28111e2
> +
> +install : $(TARGET)
> +
> +check : $(patsubst %,$(DIR_CHK)/%,$(objects))
> +
> +download :$(patsubst %,$(DIR_DL)/%,$(objects))
> +
> +md5 : $(subst %,%_MD5,$(objects))
> +
> +dist: 
> +	@$(PAK)
> +
> +###############################################################################
> +# Downloading, checking, md5sum
> +###############################################################################
> +
> +$(patsubst %,$(DIR_CHK)/%,$(objects)) :
> +	@$(CHECK)
> +
> +$(patsubst %,$(DIR_DL)/%,$(objects)) :
> +	@$(LOAD)
> +
> +$(subst %,%_MD5,$(objects)) :
> +	@$(MD5)
> +
> +###############################################################################
> +# Installation Details
> +###############################################################################
> +
> +$(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
> +	@$(PREBUILD)
> +	@rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar zxf $(DIR_DL)/$(DL_FILE)
> +	cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/lz4-1.8.1.2_mod_install_path.patch
> +
> +	cd $(DIR_APP) && make $(MAKETUNING)
> +	cd $(DIR_APP) && make install
> +
> +	@rm -rf $(DIR_APP)
> +	@$(POSTBUILD)
> +
> +
> diff --git a/make.sh b/make.sh
> index 3f10ffa..21b928d 100755
> --- a/make.sh
> +++ b/make.sh
> @@ -1032,6 +1032,7 @@ buildipfire() {
>    export LOGFILE
>    lfsmake2 configroot
>    lfsmake2 initscripts
> +  lfsmake2 lz4
>    lfsmake2 backup
>    lfsmake2 pkg-config
>    lfsmake2 libusb

Not sure if this needs to be built so early in the build process.
Wouldn't it be fine to build it where LZO is?

> diff --git a/src/patches/lz4-1.8.1.2_mod_install_path.patch b/src/patches/lz4-1.8.1.2_mod_install_path.patch
> new file mode 100644
> index 0000000..8b9646e
> --- /dev/null
> +++ b/src/patches/lz4-1.8.1.2_mod_install_path.patch
> @@ -0,0 +1,36 @@
> +diff -Nur lz4-1.8.1.2.orig/lib/Makefile lz4-1.8.1.2/lib/Makefile
> +--- lz4-1.8.1.2.orig/lib/Makefile	2018-01-21 07:24:41.881357925 +0000
> ++++ lz4-1.8.1.2/lib/Makefile	2018-01-21 07:25:44.823444081 +0000
> +@@ -120,7 +120,7 @@
> + # directory variables : GNU conventions prefer lowercase
> + # see https://www.gnu.org/prep/standards/html_node/Makefile-Conventions.html
> + # support both lower and uppercase (BSD), use uppercase in script
> +-prefix      ?= /usr/local
> ++prefix      ?= /usr
> + PREFIX      ?= $(prefix)
> + exec_prefix ?= $(PREFIX)
> + libdir      ?= $(exec_prefix)/lib
> +diff -Nur lz4-1.8.1.2.orig/NEWS lz4-1.8.1.2/NEWS
> +--- lz4-1.8.1.2.orig/NEWS	2018-01-21 07:24:41.809360114 +0000
> ++++ lz4-1.8.1.2/NEWS	2018-01-21 07:26:00.838957106 +0000
> +@@ -96,7 +96,7 @@
> + New    : lz4 cli supports long commands (suggested by Takayuki Matsuoka)
> + New    : lz4frame & lz4cli frame content size support
> + New    : lz4frame supports skippable frames, as requested by Sergey Cherepanov
> +-Changed: Default "make install" directory is /usr/local, as notified by Ron Johnson
> ++Changed: Default "make install" directory is /usr, as notified by Ron Johnson
> + New    : lz4 cli supports "pass-through" mode, requested by Neil Wilson
> + New    : datagen can generate sparse files
> + New    : scan-build tests, thanks to kind help by Takayuki Matsuoka
> +diff -Nur lz4-1.8.1.2.orig/programs/Makefile lz4-1.8.1.2/programs/Makefile
> +--- lz4-1.8.1.2.orig/programs/Makefile	2018-01-21 07:24:41.881357925 +0000
> ++++ lz4-1.8.1.2/programs/Makefile	2018-01-21 07:26:24.562235766 +0000
> +@@ -121,7 +121,7 @@
> + # directory variables : GNU conventions prefer lowercase
> + # see https://www.gnu.org/prep/standards/html_node/Makefile-Conventions.html
> + # support both lower and uppercase (BSD), use uppercase in script
> +-prefix      ?= /usr/local
> ++prefix      ?= /usr
> + PREFIX      ?= $(prefix)
> + exec_prefix ?= $(PREFIX)
> + bindir      ?= $(exec_prefix)/bin

Best,
-Michael
  
ummeegge Jan. 23, 2018, 5:55 a.m. UTC | #2
Hi Michael,
thanks for your help and feedback.
Have also deleted the 'DEPS       = "" ' line in LFS since this lib goes to common. Thanks for reviewing.

Best,

Erik

Am 21.01.2018 um 20:02 schrieb Michael Tremer:

> Hello,
> 
> good patch. Just a few minor things...
> 
> On Sun, 2018-01-21 at 17:24 +0100, Erik Kapfer wrote:
>> New lossless data compression algorithm.
>> 
>> Signed-off-by: Erik Kapfer <erik.kapfer@ipfire.org>
>> ---
>> config/rootfiles/common/lz4                    | 17 +++++
>> lfs/lz4                                        | 87 ++++++++++++++++++++++++++
>> make.sh                                        |  1 +
>> src/patches/lz4-1.8.1.2_mod_install_path.patch | 36 +++++++++++
>> 4 files changed, 141 insertions(+)
>> create mode 100644 config/rootfiles/common/lz4
>> create mode 100644 lfs/lz4
>> create mode 100644 src/patches/lz4-1.8.1.2_mod_install_path.patch
>> 
>> diff --git a/config/rootfiles/common/lz4 b/config/rootfiles/common/lz4
>> new file mode 100644
>> index 0000000..3b8bc2f
>> --- /dev/null
>> +++ b/config/rootfiles/common/lz4
>> @@ -0,0 +1,17 @@
>> +usr/bin/lz4
>> +#usr/bin/lz4c
>> +#usr/bin/lz4cat
>> +#usr/bin/unlz4
>> +#usr/include/lz4.h
>> +#usr/include/lz4frame.h
>> +#usr/include/lz4frame_static.h
>> +#usr/include/lz4hc.h
>> +#usr/lib/liblz4.a
>> +usr/lib/liblz4.so
> 
> There is no need to ship the *.so file. Just the *.so.* files are
> needed.
> 
>> +usr/lib/liblz4.so.1
>> +usr/lib/liblz4.so.1.8.1
>> +#usr/lib/pkgconfig/liblz4.pc
>> +#usr/share/man/man1/lz4.1
>> +#usr/share/man/man1/lz4c.1
>> +#usr/share/man/man1/lz4cat.1
>> +#usr/share/man/man1/unlz4.1
>> diff --git a/lfs/lz4 b/lfs/lz4
>> new file mode 100644
>> index 0000000..6f2bef2
>> --- /dev/null
>> +++ b/lfs/lz4
>> @@ -0,0 +1,87 @@
>> +###############################################################################
>> +#                                                                             #
>> +# IPFire.org - A linux based firewall                                         #
>> +# Copyright (C) 2018  IPFire Team  <info@ipfire.org>                          #
>> +#                                                                             #
>> +# This program is free software: you can redistribute it and/or modify        #
>> +# it under the terms of the GNU General Public License as published by        #
>> +# the Free Software Foundation, either version 3 of the License, or           #
>> +# (at your option) any later version.                                         #
>> +#                                                                             #
>> +# This program is distributed in the hope that it will be useful,             #
>> +# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
>> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
>> +# GNU General Public License for more details.                                #
>> +#                                                                             #
>> +# You should have received a copy of the GNU General Public License           #
>> +# along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
>> +#                                                                             #
>> +###############################################################################
>> +
>> +###############################################################################
>> +# Definitions
>> +###############################################################################
>> +
>> +include Config
>> +
>> +VER        = 1.8.1.2
>> +
>> +THISAPP    = lz4-$(VER)
>> +DL_FILE    = $(THISAPP).tar.gz
>> +DL_FROM    = $(URL_IPFIRE)
>> +DIR_APP    = $(DIR_SRC)/$(THISAPP)
>> +TARGET     = $(DIR_INFO)/$(THISAPP)
>> +PROG       = lz4
>> +
>> +DEPS       = ""
>> +
>> +###############################################################################
>> +# Top-level Rules
>> +###############################################################################
>> +
>> +objects = $(DL_FILE)
>> +
>> +$(DL_FILE) = $(DL_FROM)/$(DL_FILE)
>> +
>> +$(DL_FILE)_MD5 = 343538e69ba752a386c669b1a28111e2
>> +
>> +install : $(TARGET)
>> +
>> +check : $(patsubst %,$(DIR_CHK)/%,$(objects))
>> +
>> +download :$(patsubst %,$(DIR_DL)/%,$(objects))
>> +
>> +md5 : $(subst %,%_MD5,$(objects))
>> +
>> +dist: 
>> +	@$(PAK)
>> +
>> +###############################################################################
>> +# Downloading, checking, md5sum
>> +###############################################################################
>> +
>> +$(patsubst %,$(DIR_CHK)/%,$(objects)) :
>> +	@$(CHECK)
>> +
>> +$(patsubst %,$(DIR_DL)/%,$(objects)) :
>> +	@$(LOAD)
>> +
>> +$(subst %,%_MD5,$(objects)) :
>> +	@$(MD5)
>> +
>> +###############################################################################
>> +# Installation Details
>> +###############################################################################
>> +
>> +$(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
>> +	@$(PREBUILD)
>> +	@rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar zxf $(DIR_DL)/$(DL_FILE)
>> +	cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/lz4-1.8.1.2_mod_install_path.patch
>> +
>> +	cd $(DIR_APP) && make $(MAKETUNING)
>> +	cd $(DIR_APP) && make install
>> +
>> +	@rm -rf $(DIR_APP)
>> +	@$(POSTBUILD)
>> +
>> +
>> diff --git a/make.sh b/make.sh
>> index 3f10ffa..21b928d 100755
>> --- a/make.sh
>> +++ b/make.sh
>> @@ -1032,6 +1032,7 @@ buildipfire() {
>>   export LOGFILE
>>   lfsmake2 configroot
>>   lfsmake2 initscripts
>> +  lfsmake2 lz4
>>   lfsmake2 backup
>>   lfsmake2 pkg-config
>>   lfsmake2 libusb
> 
> Not sure if this needs to be built so early in the build process.
> Wouldn't it be fine to build it where LZO is?
> 
>> diff --git a/src/patches/lz4-1.8.1.2_mod_install_path.patch b/src/patches/lz4-1.8.1.2_mod_install_path.patch
>> new file mode 100644
>> index 0000000..8b9646e
>> --- /dev/null
>> +++ b/src/patches/lz4-1.8.1.2_mod_install_path.patch
>> @@ -0,0 +1,36 @@
>> +diff -Nur lz4-1.8.1.2.orig/lib/Makefile lz4-1.8.1.2/lib/Makefile
>> +--- lz4-1.8.1.2.orig/lib/Makefile	2018-01-21 07:24:41.881357925 +0000
>> ++++ lz4-1.8.1.2/lib/Makefile	2018-01-21 07:25:44.823444081 +0000
>> +@@ -120,7 +120,7 @@
>> + # directory variables : GNU conventions prefer lowercase
>> + # see https://www.gnu.org/prep/standards/html_node/Makefile-Conventions.html
>> + # support both lower and uppercase (BSD), use uppercase in script
>> +-prefix      ?= /usr/local
>> ++prefix      ?= /usr
>> + PREFIX      ?= $(prefix)
>> + exec_prefix ?= $(PREFIX)
>> + libdir      ?= $(exec_prefix)/lib
>> +diff -Nur lz4-1.8.1.2.orig/NEWS lz4-1.8.1.2/NEWS
>> +--- lz4-1.8.1.2.orig/NEWS	2018-01-21 07:24:41.809360114 +0000
>> ++++ lz4-1.8.1.2/NEWS	2018-01-21 07:26:00.838957106 +0000
>> +@@ -96,7 +96,7 @@
>> + New    : lz4 cli supports long commands (suggested by Takayuki Matsuoka)
>> + New    : lz4frame & lz4cli frame content size support
>> + New    : lz4frame supports skippable frames, as requested by Sergey Cherepanov
>> +-Changed: Default "make install" directory is /usr/local, as notified by Ron Johnson
>> ++Changed: Default "make install" directory is /usr, as notified by Ron Johnson
>> + New    : lz4 cli supports "pass-through" mode, requested by Neil Wilson
>> + New    : datagen can generate sparse files
>> + New    : scan-build tests, thanks to kind help by Takayuki Matsuoka
>> +diff -Nur lz4-1.8.1.2.orig/programs/Makefile lz4-1.8.1.2/programs/Makefile
>> +--- lz4-1.8.1.2.orig/programs/Makefile	2018-01-21 07:24:41.881357925 +0000
>> ++++ lz4-1.8.1.2/programs/Makefile	2018-01-21 07:26:24.562235766 +0000
>> +@@ -121,7 +121,7 @@
>> + # directory variables : GNU conventions prefer lowercase
>> + # see https://www.gnu.org/prep/standards/html_node/Makefile-Conventions.html
>> + # support both lower and uppercase (BSD), use uppercase in script
>> +-prefix      ?= /usr/local
>> ++prefix      ?= /usr
>> + PREFIX      ?= $(prefix)
>> + exec_prefix ?= $(PREFIX)
>> + bindir      ?= $(exec_prefix)/bin
> 
> Best,
> -Michael
  

Patch

diff --git a/config/rootfiles/common/lz4 b/config/rootfiles/common/lz4
new file mode 100644
index 0000000..3b8bc2f
--- /dev/null
+++ b/config/rootfiles/common/lz4
@@ -0,0 +1,17 @@ 
+usr/bin/lz4
+#usr/bin/lz4c
+#usr/bin/lz4cat
+#usr/bin/unlz4
+#usr/include/lz4.h
+#usr/include/lz4frame.h
+#usr/include/lz4frame_static.h
+#usr/include/lz4hc.h
+#usr/lib/liblz4.a
+usr/lib/liblz4.so
+usr/lib/liblz4.so.1
+usr/lib/liblz4.so.1.8.1
+#usr/lib/pkgconfig/liblz4.pc
+#usr/share/man/man1/lz4.1
+#usr/share/man/man1/lz4c.1
+#usr/share/man/man1/lz4cat.1
+#usr/share/man/man1/unlz4.1
diff --git a/lfs/lz4 b/lfs/lz4
new file mode 100644
index 0000000..6f2bef2
--- /dev/null
+++ b/lfs/lz4
@@ -0,0 +1,87 @@ 
+###############################################################################
+#                                                                             #
+# IPFire.org - A linux based firewall                                         #
+# Copyright (C) 2018  IPFire Team  <info@ipfire.org>                          #
+#                                                                             #
+# This program is free software: you can redistribute it and/or modify        #
+# it under the terms of the GNU General Public License as published by        #
+# the Free Software Foundation, either version 3 of the License, or           #
+# (at your option) any later version.                                         #
+#                                                                             #
+# This program is distributed in the hope that it will be useful,             #
+# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
+# GNU General Public License for more details.                                #
+#                                                                             #
+# You should have received a copy of the GNU General Public License           #
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
+#                                                                             #
+###############################################################################
+
+###############################################################################
+# Definitions
+###############################################################################
+
+include Config
+
+VER        = 1.8.1.2
+
+THISAPP    = lz4-$(VER)
+DL_FILE    = $(THISAPP).tar.gz
+DL_FROM    = $(URL_IPFIRE)
+DIR_APP    = $(DIR_SRC)/$(THISAPP)
+TARGET     = $(DIR_INFO)/$(THISAPP)
+PROG       = lz4
+
+DEPS       = ""
+
+###############################################################################
+# Top-level Rules
+###############################################################################
+
+objects = $(DL_FILE)
+
+$(DL_FILE) = $(DL_FROM)/$(DL_FILE)
+
+$(DL_FILE)_MD5 = 343538e69ba752a386c669b1a28111e2
+
+install : $(TARGET)
+
+check : $(patsubst %,$(DIR_CHK)/%,$(objects))
+
+download :$(patsubst %,$(DIR_DL)/%,$(objects))
+
+md5 : $(subst %,%_MD5,$(objects))
+
+dist: 
+	@$(PAK)
+
+###############################################################################
+# Downloading, checking, md5sum
+###############################################################################
+
+$(patsubst %,$(DIR_CHK)/%,$(objects)) :
+	@$(CHECK)
+
+$(patsubst %,$(DIR_DL)/%,$(objects)) :
+	@$(LOAD)
+
+$(subst %,%_MD5,$(objects)) :
+	@$(MD5)
+
+###############################################################################
+# Installation Details
+###############################################################################
+
+$(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
+	@$(PREBUILD)
+	@rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar zxf $(DIR_DL)/$(DL_FILE)
+	cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/lz4-1.8.1.2_mod_install_path.patch
+
+	cd $(DIR_APP) && make $(MAKETUNING)
+	cd $(DIR_APP) && make install
+
+	@rm -rf $(DIR_APP)
+	@$(POSTBUILD)
+
+
diff --git a/make.sh b/make.sh
index 3f10ffa..21b928d 100755
--- a/make.sh
+++ b/make.sh
@@ -1032,6 +1032,7 @@  buildipfire() {
   export LOGFILE
   lfsmake2 configroot
   lfsmake2 initscripts
+  lfsmake2 lz4
   lfsmake2 backup
   lfsmake2 pkg-config
   lfsmake2 libusb
diff --git a/src/patches/lz4-1.8.1.2_mod_install_path.patch b/src/patches/lz4-1.8.1.2_mod_install_path.patch
new file mode 100644
index 0000000..8b9646e
--- /dev/null
+++ b/src/patches/lz4-1.8.1.2_mod_install_path.patch
@@ -0,0 +1,36 @@ 
+diff -Nur lz4-1.8.1.2.orig/lib/Makefile lz4-1.8.1.2/lib/Makefile
+--- lz4-1.8.1.2.orig/lib/Makefile	2018-01-21 07:24:41.881357925 +0000
++++ lz4-1.8.1.2/lib/Makefile	2018-01-21 07:25:44.823444081 +0000
+@@ -120,7 +120,7 @@
+ # directory variables : GNU conventions prefer lowercase
+ # see https://www.gnu.org/prep/standards/html_node/Makefile-Conventions.html
+ # support both lower and uppercase (BSD), use uppercase in script
+-prefix      ?= /usr/local
++prefix      ?= /usr
+ PREFIX      ?= $(prefix)
+ exec_prefix ?= $(PREFIX)
+ libdir      ?= $(exec_prefix)/lib
+diff -Nur lz4-1.8.1.2.orig/NEWS lz4-1.8.1.2/NEWS
+--- lz4-1.8.1.2.orig/NEWS	2018-01-21 07:24:41.809360114 +0000
++++ lz4-1.8.1.2/NEWS	2018-01-21 07:26:00.838957106 +0000
+@@ -96,7 +96,7 @@
+ New    : lz4 cli supports long commands (suggested by Takayuki Matsuoka)
+ New    : lz4frame & lz4cli frame content size support
+ New    : lz4frame supports skippable frames, as requested by Sergey Cherepanov
+-Changed: Default "make install" directory is /usr/local, as notified by Ron Johnson
++Changed: Default "make install" directory is /usr, as notified by Ron Johnson
+ New    : lz4 cli supports "pass-through" mode, requested by Neil Wilson
+ New    : datagen can generate sparse files
+ New    : scan-build tests, thanks to kind help by Takayuki Matsuoka
+diff -Nur lz4-1.8.1.2.orig/programs/Makefile lz4-1.8.1.2/programs/Makefile
+--- lz4-1.8.1.2.orig/programs/Makefile	2018-01-21 07:24:41.881357925 +0000
++++ lz4-1.8.1.2/programs/Makefile	2018-01-21 07:26:24.562235766 +0000
+@@ -121,7 +121,7 @@
+ # directory variables : GNU conventions prefer lowercase
+ # see https://www.gnu.org/prep/standards/html_node/Makefile-Conventions.html
+ # support both lower and uppercase (BSD), use uppercase in script
+-prefix      ?= /usr/local
++prefix      ?= /usr
+ PREFIX      ?= $(prefix)
+ exec_prefix ?= $(PREFIX)
+ bindir      ?= $(exec_prefix)/bin