configure.ac: check for C++ detection failure

When no C++ compiler is found, let CXX fall back to $CC, and disable
all features which require C++.
This commit is contained in:
Max Kellermann 2009-04-15 22:29:16 +02:00
parent c13cecc0ae
commit 9db7c13ef5

View File

@ -15,6 +15,21 @@ dnl
AC_PROG_CC_C99
AC_PROG_CXX
HAVE_CXX=yes
if test x$CXX = xg++; then
# CXX=g++ probably means that autoconf hasn't found any C++
# compiler; to be sure, we check again
AC_PATH_PROG(CXX, $CXX, no)
if test x$CXX = xno; then
# no, we don't have C++ - the following hack is
# required because automake insists on using $(CXX)
# for linking the MPD binary
AC_MSG_NOTICE([Disabling C++ support])
CXX="$CC"
HAVE_CXX=no
fi
fi
AC_PROG_INSTALL
AC_PROG_MAKE_SET
PKG_PROG_PKG_CONFIG
@ -430,6 +445,9 @@ AC_ARG_ENABLE(modplug,
[enable modplug decoder plugin]),,
enable_modplug=auto)
found_modplug=$HAVE_CXX
MPD_AUTO_PRE(modplug, [modplug decoder plugin], [No C++ compiler found])
MPD_AUTO_PKG(modplug, MODPLUG, [libmodplug],
[modplug decoder plugin], [libmodplug not found])
AM_CONDITIONAL(HAVE_MODPLUG, test x$enable_modplug = xyes)
@ -476,6 +494,9 @@ AC_ARG_ENABLE(sidplay,
[enable C64 SID support via libsidplay2]),,
enable_sidplay=auto)
found_sidplay=$HAVE_CXX
MPD_AUTO_PRE(sidplay, [sidplay decoder plugin], [No C++ compiler found])
if test x$enable_sidplay != xno; then
# we're not using pkg-config here
# because libsidplay2's .pc file requires libtool