From 50f34d2cac63b6bf0935294a7d63d9451714f4c4 Mon Sep 17 00:00:00 2001
From: Peter Korsgaard <peter@korsgaard.com>
Date: Thu, 20 Nov 2014 13:24:59 +0100
Subject: [PATCH] Misc/python-config.sh.in: ensure sed invocations only match
 beginning of strings

The build/real prefix handling using sed breaks if build != real and the
standard include / lib directories are used ($prefix/include and $prefix/lib).

E.G.

prefix_build="/usr", libdir="$prefix/lib", includedir="$prefix/include".

If this gets installed with make DESTDIR="/foo" install, then we end up with
prefix_real = prefix = "/foo/usr" as expected, but
includedir="/foo/foo/usr/include" and libdir="/foo/foo/usr/lib" because of
the double sed invocation (prefix is already expanded).  Work around it by
ensuring we only match the beginning of the string.

Submitted upstream: http://bugs.python.org/issue22907

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
---
 Misc/python-config.sh.in | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

Index: b/Misc/python-config.sh.in
===================================================================
--- a/Misc/python-config.sh.in
+++ b/Misc/python-config.sh.in
@@ -29,12 +29,12 @@
 
 # Use sed to fix paths from their built-to locations to their installed-to
 # locations.
-prefix=$(echo "$prefix_build" | sed "s#$prefix_build#$prefix_real#")
+prefix=$(echo "$prefix_build" | sed "s#^$prefix_build#$prefix_real#")
 exec_prefix_build="@exec_prefix@"
-exec_prefix=$(echo "$exec_prefix_build" | sed "s#$exec_prefix_build#$prefix_real#")
-includedir=$(echo "@includedir@" | sed "s#$prefix_build#$prefix_real#")
-libdir=$(echo "@libdir@" | sed "s#$prefix_build#$prefix_real#")
-CFLAGS=$(echo "@CFLAGS@" | sed "s#$prefix_build#$prefix_real#")
+exec_prefix=$(echo "$exec_prefix_build" | sed "s#^$exec_prefix_build#$prefix_real#")
+includedir=$(echo "@includedir@" | sed "s#^$prefix_build#$prefix_real#")
+libdir=$(echo "@libdir@" | sed "s#^$prefix_build#$prefix_real#")
+CFLAGS=$(echo "@CFLAGS@" | sed "s#^$prefix_build#$prefix_real#")
 VERSION="@VERSION@"
 LIBM="@LIBM@"
 LIBC="@LIBC@"
@@ -48,7 +48,7 @@
 PY_ENABLE_SHARED="@PY_ENABLE_SHARED@"
 LDVERSION="@LDVERSION@"
 LIBDEST=${prefix}/lib/python${VERSION}
-LIBPL=$(echo "@LIBPL@" | sed "s#$prefix_build#$prefix_real#")
+LIBPL=$(echo "@LIBPL@" | sed "s#^$prefix_build#$prefix_real#")
 SO="@SO@"
 PYTHONFRAMEWORK="@PYTHONFRAMEWORK@"
 INCDIR="-I$includedir/python${VERSION}${ABIFLAGS}"