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authorH.J. Lu <hjl.tools@gmail.com>2017-06-13 09:28:14 -0700
committerH.J. Lu <hjl.tools@gmail.com>2017-06-13 10:53:45 -0700
commita65ea28d1833d3502c5070472e43bda04410e6b5 (patch)
tree0f8a11710846aa61d89ce64a740a6c2798531f89 /configure
parent70ec56e9f21ac798ab13019e7000c5d0abf6911d (diff)
Make copy of <bits/std_abs.h> from GCC 7 [BZ #21573]
<bits/std_abs.h> from GCC 7 will include /usr/include/stdlib.h from "#include_next" (instead of stdlib/stdlib.h in the glibc source directory), and this turns up as a make dependency. Also make a copy of <bits/std_abs.h> to prevent it from including /usr/include/stdlib.h. [BZ #21573] * Makerules [$(c++-bits-std_abs-h) != ""] (before-compile): Add $(common-objpfx)bits/std_abs.h. [$(c++-bits-std_abs-h) != ""] ($(common-objpfx)bits/std_abs.h): New target. * config.make.in (c++-bits-std_abs-h): New. * configure.ac (find_cxx_header): Use "\,$1," with sed. (CXX_BITS_STD_ABS_H): New. (AC_SUBST(CXX_BITS_STD_ABS_H)): Likewise. * configure: Regenerated.
Diffstat (limited to 'configure')
-rwxr-xr-xconfigure5
1 files changed, 4 insertions, 1 deletions
diff --git a/configure b/configure
index 422482f355..ceb53949ba 100755
--- a/configure
+++ b/configure
@@ -634,6 +634,7 @@ BISON
INSTALL_INFO
PERL
BASH_SHELL
+CXX_BITS_STD_ABS_H
CXX_CMATH_HEADER
CXX_CSTDLIB_HEADER
CXX_SYSINCLUDES
@@ -5336,14 +5337,16 @@ fi
# copy of those headers in Makerules.
if test -n "$CXX"; then
find_cxx_header () {
- echo "#include <$1>" | $CXX -M -MP -x c++ - | sed -n "/$1:/{s/:\$//;p}"
+ echo "#include <$1>" | $CXX -M -MP -x c++ - | sed -n "\,$1:,{s/:\$//;p}"
}
CXX_CSTDLIB_HEADER="$(find_cxx_header cstdlib)"
CXX_CMATH_HEADER="$(find_cxx_header cmath)"
+ CXX_BITS_STD_ABS_H="$(find_cxx_header bits/std_abs.h)"
fi
+
# Test if LD_LIBRARY_PATH contains the notation for the current directory
# since this would lead to problems installing/building glibc.
# LD_LIBRARY_PATH contains the current directory if one of the following