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| author |  Martin Szulecki | 2014-10-22 02:14:52 +0200 |
|---|---|---|
| committer | Martin Szulecki | 2014-10-22 02:14:52 +0200 |
| commit | cc907c0f162ee84e5698b9c27ac6fb0be8bb9bc0 (patch) | |
| tree | ee6873a5fda80158afdbb2c9706ace0d771e4cec | |
| parent | a2c5ec6350597ad6a84341579c9d1d1780e97a98 (diff) | |
| download | libplist-cc907c0f162ee84e5698b9c27ac6fb0be8bb9bc0.tar.gz libplist-cc907c0f162ee84e5698b9c27ac6fb0be8bb9bc0.tar.bz2 | |
Workaround autoconf bug and ensure a C++ compiler is mandatory
If AC_PROG_CXX is used after AC_PROG_CC, it will return "g++" even if no
C++ compiler is installed. However, as we need one, testing compiling a
program will make configure fail if indeed no C++ compiler is installed.
| -rw-r--r-- | configure.ac | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index fb6b196..b9185a6 100644 --- a/configure.ac +++ b/configure.ac @@ -27,6 +27,16 @@ AC_SUBST(LIBXML2_VERSION) # Checks for programs. AC_PROG_CC AC_PROG_CXX + +# AC_PROG_CXX will return "g++" even if no c++ compiler is installed +AC_LANG_PUSH([C++]) +AC_MSG_CHECKING([whether $CXX is available and compiles a program]) +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[])], + [AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no]) + AC_MSG_ERROR([C++ compiler not available or unable to compile])]) +AC_LANG_POP + AM_PROG_CC_C_O AC_PROG_LIBTOOL |