Branch: refs/heads/master Author: Colomban Wendling ban@herbesfolles.org Committer: Colomban Wendling ban@herbesfolles.org Date: Sat, 20 Aug 2016 17:55:26 UTC Commit: 42c02db149391e32801543f3b6dbebcf43b4ff3b https://github.com/geany/geany/commit/42c02db149391e32801543f3b6dbebcf43b4ff...
Log Message: ----------- Merge pull request #1155 from b4n/cxx-check
Test whether the C++ compiler works by compiling a test program
Modified Paths: -------------- configure.ac m4/geany-prog-cxx.m4
Modified: configure.ac 6 lines changed, 1 insertions(+), 5 deletions(-) =================================================================== @@ -30,11 +30,7 @@ AC_PROG_CC_C99 AM_PROG_CC_C_O
AC_PROG_CXX -# check for C++ compiler explicitly and fail if none is found, do this check -# after AC_PROG_CXX has set the CXX environment variable -if ! which $CXX >/dev/null 2>&1; then - AC_MSG_ERROR([No C++ compiler found. Please install a C++ compiler.]) -fi +GEANY_PROG_CXX
AC_PROG_INSTALL AC_PROG_LN_S
Modified: m4/geany-prog-cxx.m4 20 lines changed, 20 insertions(+), 0 deletions(-) =================================================================== @@ -0,0 +1,20 @@ +dnl GEANY_PROG_CXX +dnl Check for a working C++ compiler. +dnl like AC_PROG_CXX, but makes sure the compiler actually works instead of +dnl falling back on a reasonable default only. +dnl +dnl You must call AC_PROG_CXX yourself before this macro. +AC_DEFUN([GEANY_PROG_CXX], +[ + AC_REQUIRE([AC_PROG_CXX]) + + AC_LANG_PUSH([C++]) + AC_MSG_CHECKING([whether the C++ compiler works]) + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[class Test {public: static int main() {return 0;}};]], + [[Test::main();]])], + [AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no]) + AC_MSG_ERROR([The C++ compiler $CXX does not work. Please install a working C++ compiler or define CXX to the appropriate value.])]) + AC_LANG_POP([C++]) +])
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