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Fix C++ header directory detection for non-standard paths.

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Stop assuming specific path layouts for C++ headers, and instead
use an autodetection method that looks for paths with '/[cg]++'
in the g++ include list.
This commit is contained in:
Adam Conrad 2012-11-24 23:58:38 -07:00
parent 800938a126
commit 6706074627
3 changed files with 15 additions and 12 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2012-11-24 Adam Conrad <adconrad@0c3.net>
* configure.in: Autodetect C++ header directories.
* configure: Regenerated.
2012-11-23 Mike Frysinger <vapier@gentoo.org>
* elf/Makefile ($(objpfx)ld.so): Change readelf to $(READELF).

11
configure vendored
View File

@ -5423,12 +5423,11 @@ if test -n "$sysheaders"; then
-isystem `echo $sysheaders | sed 's/:/ -isystem /g'`"
if test -n "$CXX"; then
CXX_SYSINCLUDES=
cxxmachine=`$CXX -dumpmachine 2>&5` &&
cxxheaders=`$CXX -v -S -x c++ /dev/null -o /dev/null 2>&1 \
| sed -n -e '1,/#include/d' -e '/^ \//{p;q;}' | sed 's/ //'`
test "x$cxxheaders" != x && test "x$i" != "x$cxxheaders" &&
CXX_SYSINCLUDES="$CXX_SYSINCLUDES -isystem $cxxheaders \
-isystem $cxxheaders/$cxxmachine -isystem $cxxheaders/backward"
for cxxheaders in `$CXX -v -S -x c++ /dev/null -o /dev/null 2>&1 \
| sed -n -e '1,/#include/d' -e 's/^ \(\/.*\/[cg]++\)/\1/p'`; do
test "x$cxxheaders" != x &&
CXX_SYSINCLUDES="$CXX_SYSINCLUDES -isystem $cxxheaders"
done
fi
fi

11
configure.in
View File

@ -995,12 +995,11 @@ if test -n "$sysheaders"; then
-isystem `echo $sysheaders | sed 's/:/ -isystem /g'`"
if test -n "$CXX"; then
CXX_SYSINCLUDES=
cxxmachine=`$CXX -dumpmachine 2>&AS_MESSAGE_LOG_FD` &&
cxxheaders=`$CXX -v -S -x c++ /dev/null -o /dev/null 2>&1 \
| sed -n -e '1,/#include/d' -e '/^ \//{p;q;}' | sed 's/ //'`
test "x$cxxheaders" != x && test "x$i" != "x$cxxheaders" &&
CXX_SYSINCLUDES="$CXX_SYSINCLUDES -isystem $cxxheaders \
-isystem $cxxheaders/$cxxmachine -isystem $cxxheaders/backward"
for cxxheaders in `$CXX -v -S -x c++ /dev/null -o /dev/null 2>&1 \
| sed -n -e '1,/#include/d' -e 's/^ \(\/.*\/[cg]++\)/\1/p'`; do
test "x$cxxheaders" != x &&
CXX_SYSINCLUDES="$CXX_SYSINCLUDES -isystem $cxxheaders"
done
fi
fi
AC_SUBST(SYSINCLUDES)