git: Install perl files and update to 2.7.4

Installing perl files allows things using perl such as
'git add -p' to work.

Installing the git perl files is a bit messy when cross-compiling
git. We patch the install path to use a private folder for these
instead of messing with the system perl.

Note that git does not depend on perl, since that is a relatively
big dependency which many won't be using anyway.

packages/git/build.sh

@@ -2,20 +2,30 @@ TERMUX_PKG_HOMEPAGE=http://git-scm.com/
 TERMUX_PKG_DESCRIPTION="Distributed version control system designed to handle everything from small to very large projects with speed and efficiency"
 # less is required as a pager for git log, and the busybox less does not handle used escape sequences.
 TERMUX_PKG_DEPENDS="libcurl, less"
-TERMUX_PKG_VERSION=2.7.2
+TERMUX_PKG_VERSION=2.7.4
 TERMUX_PKG_SRCURL=https://www.kernel.org/pub/software/scm/git/git-${TERMUX_PKG_VERSION}.tar.xz
 ## This requires a working $TERMUX_PREFIX/bin/sh on the host building:
 TERMUX_PKG_EXTRA_CONFIGURE_ARGS="--without-tcltk --with-curl --with-shell=$TERMUX_PREFIX/bin/sh ac_cv_header_libintl_h=no ac_cv_fread_reads_directories=yes ac_cv_snprintf_returns_bogus=yes"
 # expat is only used by git-http-push for remote lock management over DAV, so disable:
 # NO_INSTALL_HARDLINKS to use symlinks instead of hardlinks (which does not work on Android M):
-TERMUX_PKG_EXTRA_MAKE_ARGS="NO_NSEC=1 NO_PERL=1 NO_GETTEXT=1 NO_EXPAT=1 NO_INSTALL_HARDLINKS=1 PERL_PATH=$TERMUX_PREFIX/bin/perl"
+TERMUX_PKG_EXTRA_MAKE_ARGS="NO_NSEC=1 NO_GETTEXT=1 NO_EXPAT=1 NO_INSTALL_HARDLINKS=1 PERL_PATH=$TERMUX_PREFIX/bin/perl"
 TERMUX_PKG_BUILD_IN_SRC="yes"
 
 # Things to remove to save space:
 #  bin/git-cvsserver - server emulating CVS
 #  bin/git-shell - restricted login shell for Git-only SSH access
-#  lib/perl5 - perl scripts
-TERMUX_PKG_RM_AFTER_INSTALL="bin/git-cvsserver bin/git-shell lib/perl5 Library"
+TERMUX_PKG_RM_AFTER_INSTALL="bin/git-cvsserver bin/git-shell Library"
+
+termux_step_pre_configure () {
+	# Setup perl so that the build process can execute it:
+	rm -f $TERMUX_PREFIX/bin/perl
+	ln -s `which perl` $TERMUX_PREFIX/bin/perl
+
+	# Force fresh perl files (otherwise files from earlier builds
+	# remains without bumped modification times, so are not picked
+	# up by the package):
+	rm -Rf $TERMUX_PREFIX/share/git-perl
+}
 
 termux_step_post_make_install () {
 	# Installing man requires asciidoc and xmlto, so git uses separate make targets for man pages
@@ -24,6 +34,12 @@ termux_step_post_make_install () {
 	mkdir -p $TERMUX_PREFIX/etc/bash_completion.d/
 	cp $TERMUX_PKG_SRCDIR/contrib/completion/git-completion.bash \
 	   $TERMUX_PREFIX/etc/bash_completion.d/
+
+	# Remove the build machine perl setup in termux_step_pre_configure to avoid it being packaged:
+	rm $TERMUX_PREFIX/bin/perl
+
+	# Remove clutter:
+	rm -Rf $TERMUX_PREFIX/lib/*-linux*/perl
 }
 
 termux_step_post_massage () {

packages/git/makefile.patch

@@ -1,7 +1,13 @@
-diff -u -r ../git-2.5.0/Makefile ./Makefile
---- ../git-2.5.0/Makefile	2015-07-27 16:34:56.000000000 -0400
-+++ ./Makefile	2015-07-30 03:43:04.011455306 -0400
-@@ -1431,7 +1431,6 @@
+The librt functionality is built into libc on Android.
+
+The Termux git package installs git perl files to $PREFIX/share/git-perl
+by patching perl/Makefile.PL, so setup that path when building perl
+files in this Makefile.
+
+diff -u -r ../git-2.7.4/Makefile ./Makefile
+--- ../git-2.7.4/Makefile	2016-03-17 16:47:59.000000000 -0400
++++ ./Makefile	2016-03-24 22:46:20.335193973 -0400
+@@ -1455,7 +1455,6 @@
  
  ifdef HAVE_CLOCK_GETTIME
  	BASIC_CFLAGS += -DHAVE_CLOCK_GETTIME
@@ -9,3 +15,12 @@ diff -u -r ../git-2.5.0/Makefile ./Makefile
  endif
  
  ifdef HAVE_CLOCK_MONOTONIC
+@@ -1789,7 +1788,7 @@
+ 	sed -e '1{' \
+ 	    -e '	s|#!.*perl|#!$(PERL_PATH_SQ)|' \
+ 	    -e '	h' \
+-	    -e '	s=.*=use lib (split(/$(pathsep)/, $$ENV{GITPERLLIB} || "'"$$INSTLIBDIR"'"));=' \
++	    -e '	s=.*=use lib (split(/$(pathsep)/, $$ENV{GITPERLLIB} || "'"@TERMUX_PREFIX@/share/git-perl"'"));=' \
+ 	    -e '	H' \
+ 	    -e '	x' \
+ 	    -e '}' \

packages/git/perl-Makefile.PL.patch

@@ -0,0 +1,24 @@
+Install git perl files to a local git-specific folder and
+be sure to bring the private Error.pm copy with it.
+
+diff -u -r ../git-2.7.4/perl/Makefile.PL ./perl/Makefile.PL
+--- ../git-2.7.4/perl/Makefile.PL	2016-03-17 16:47:59.000000000 -0400
++++ ./perl/Makefile.PL	2016-03-24 22:38:12.222059955 -0400
+@@ -38,15 +38,13 @@
+ 	my $pm_path = $File::Find::name;
+ 	$pm_path =~ s{^\./}{};
+ 
+-	$pm{$pm_path} = '$(INST_LIBDIR)/'.$pm_path;
++	$pm{$pm_path} = '@TERMUX_PREFIX@/share/git-perl/'.$pm_path;
+ }, "Git", "Git.pm";
+ 
+ 
+ # We come with our own bundled Error.pm. It's not in the set of default
+ # Perl modules so install it if it's not available on the system yet.
+-if ( !eval { require Error } || $Error::VERSION < 0.15009) {
+-	$pm{'private-Error.pm'} = '$(INST_LIBDIR)/Error.pm';
+-}
++	$pm{'private-Error.pm'} = '@TERMUX_PREFIX@/share/git-perl/Error.pm';
+ 
+ # redirect stdout, otherwise the message "Writing perl.mak for Git"
+ # disrupts the output for the target 'instlibdir'