This causes libmpx to fail the configure stage on my build hosts because 'xg++'
was invoked with the bogus '-funconfigured-libstdc++-v3' flag, and the fallback
preprocessor '/lib/cpp' did not exist on my systems.
Since libmpx has no C++ code, requiring a C++ preprocessor and compiler at
configure time doesn't make any sense. Simply remove the directives from
configure.ac.
I tested this change on my build environments and the libmpx configure failures
I was seeing went away. Recommend this be applied to trunk and the gcc-5
branch.
ChangeLog
2015-04-23 Steven Noonan <ste...@uplinklabs.net>
* configure.ac: Drop AC_PROG_CXX and friends, since libmpx has no C++
sources.
* configure: Regenerate.
---
libmpx/configure.ac | 2 --
1 file changed, 2 deletions(-)
diff --git a/libmpx/configure.ac b/libmpx/configure.ac
index 3f8b50f..463e855 100644
--- a/libmpx/configure.ac
+++ b/libmpx/configure.ac
@@ -23,7 +23,6 @@ AC_MSG_RESULT($version_specific_libs)
AC_CANONICAL_SYSTEM
target_alias=${target_alias-$host_alias}
AC_SUBST(target_alias)
-GCC_LIBSTDCXX_RAW_CXX_FLAGS
# See if supported.
unset LIBMPX_SUPPORTED
@@ -94,7 +93,6 @@ AC_SUBST(toolexeclibdir)
m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS])
m4_define([_AC_ARG_VAR_PRECIOUS],[])
AC_PROG_CC
-AC_PROG_CXX
m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
AM_PROG_CC_C_O
--
2.3.6
