[PATCH] Don't claim C++ compiler exists if it's not installed

[Richard W.M. Jones]

Small update to this patch: With CXX= configure things that the native
C++ compiler is suitable.  The patch is updated so that we set
ac_cv_prog_CXX=no to avoid this.

Rich.

-- 
Richard Jones, Emerging Technologies, Red Hat  http://et.redhat.com/~rjones
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-------------- next part --------------
? .build-43-6.fc11.log
? mingw32-filesystem-43
? mingw32-filesystem-43-6.fc11.src.rpm
? noarch
Index: mingw32-filesystem.spec
===================================================================
RCS file: /cvs/pkgs/rpms/mingw32-filesystem/devel/mingw32-filesystem.spec,v
retrieving revision 1.10
diff -u -r1.10 mingw32-filesystem.spec
--- mingw32-filesystem.spec	14 Jan 2009 10:20:03 -0000	1.10
+++ mingw32-filesystem.spec	24 Jan 2009 18:07:20 -0000
@@ -1,8 +1,8 @@
 %define debug_package %{nil}
 
 Name:           mingw32-filesystem
-Version:        42
-Release:        1%{?dist}
+Version:        43
+Release:        6%{?dist}
 Summary:        MinGW base filesystem and environment
 
 Group:          Development/Libraries
@@ -145,6 +145,10 @@
 
 
 %changelog
+* Sat Jan 24 2009 Richard W.M. Jones <rjones at redhat.com> - 43-6
+- Don't claim C++ compiler exists if it's not installed, as this
+  breaks autoconf and (in particular) libtool.
+
 * Wed Jan 14 2009 Richard W.M. Jones <rjones at redhat.com> - 42-1
 - Add pseudo-provides secur32.dll
 
Index: mingw32-macros.mingw32
===================================================================
RCS file: /cvs/pkgs/rpms/mingw32-filesystem/devel/mingw32-macros.mingw32,v
retrieving revision 1.6
diff -u -r1.6 mingw32-macros.mingw32
--- mingw32-macros.mingw32	18 Dec 2008 10:53:30 -0000	1.6
+++ mingw32-macros.mingw32	24 Jan 2009 18:07:20 -0000
@@ -55,16 +55,22 @@
 
 %_mingw32_env HOST_CC=gcc; export HOST_CC; \
   PKG_CONFIG_PATH="%{_mingw32_libdir}/pkgconfig"; export PKG_CONFIG_PATH; \
-  CC="${MINGW32_CC:-%_mingw32_cc}"; export CC; \
-  CXX="${MINGW32_CXX:-%_mingw32_cxx}"; export CXX; \
-  CFLAGS="${MINGW32_CFLAGS:-%_mingw32_cflags}"; export CFLAGS; \
-  CXXFLAGS="${MINGW32_CXXFLAGS:-%_mingw32_cflags}"; export CXXFLAGS; \
   _PREFIX="%{_bindir}/%{_mingw32_target}-"; \
-  for i in `ls ${_PREFIX}*|egrep -v "gcc-"`; do \
+  for i in `ls -1 ${_PREFIX}* | grep -v 'gcc-'`; do \
     x=`echo $i|sed "s,${_PREFIX},,"|tr "a-z+-" "A-ZX_"`; \
     declare -x $x="$i" ; export $x; \
   done; \
   unset _PREFIX; \
+  CC="${MINGW32_CC:-%_mingw32_cc}"; export CC; \
+  CFLAGS="${MINGW32_CFLAGS:-%_mingw32_cflags}"; export CFLAGS; \
+  if [ -x "%{_bindir}/%{_mingw32_cxx}" ]; then \
+    CXX="${MINGW32_CXX:-%_mingw32_cxx}"; export CXX; \
+    CXXFLAGS="${MINGW32_CXXFLAGS:-%_mingw32_cflags}"; export CXXFLAGS; \
+  else \
+    CXX=; export CXX; \
+    ac_cv_prog_CXX=no; export ac_cv_prog_CXX; \
+    CXXFLAGS=; export CXXFLAGS; \
+  fi; \
   for i in `ls %{_mingw32_bindir}/*|grep -- "-config\$"` ; do \
     x=`basename $i|tr "a-z+-" "A-ZX_"`; \
     declare -x $x="$i" ; export $x; \