e3f7d256c3
This is more reliable than using `which`, which doesn't work if the CXX environment variable is set to something else than an executable (e.g contains options), and is apparently less portable on some systems. See: * http://lists.geany.org/pipermail/devel/2009-September/001367.html, which lead to 5bb28825aadb43ea8ba536c34970d53860b50759. * https://sourceforge.net/p/geany/bugs/455/, which lead to a revert of the above, 5b9605a9d6d799629b8ed3163596069c8c948b06. Fixes #829.
21 lines
720 B
Plaintext
21 lines
720 B
Plaintext
dnl GEANY_PROG_CXX
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dnl Check for a working C++ compiler.
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dnl like AC_PROG_CXX, but makes sure the compiler actually works instead of
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dnl falling back on a reasonable default only.
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dnl
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dnl You must call AC_PROG_CXX yourself before this macro.
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AC_DEFUN([GEANY_PROG_CXX],
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[
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AC_REQUIRE([AC_PROG_CXX])
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AC_LANG_PUSH([C++])
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AC_MSG_CHECKING([whether the C++ compiler works])
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AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM([[class Test {public: static int main() {return 0;}};]],
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[[Test::main();]])],
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[AC_MSG_RESULT([yes])],
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[AC_MSG_RESULT([no])
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AC_MSG_ERROR([The C++ compiler $CXX does not work. Please install a working C++ compiler or define CXX to the appropriate value.])])
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AC_LANG_POP([C++])
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])
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