44 lines
1.1 KiB
Plaintext
44 lines
1.1 KiB
Plaintext
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dnl This provides configure definitions used by all the winsup
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dnl configure.in files.
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# FIXME: We temporarily define our own version of AC_PROG_CC. This is
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# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We
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# are probably using a cross compiler, which will not be able to fully
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# link an executable. This should really be fixed in autoconf
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# itself.
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AC_DEFUN([LIB_AC_PROG_CC_GNU],
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[AC_CACHE_CHECK(whether we are using GNU C, ac_cv_prog_gcc,
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[dnl The semicolon is to pacify NeXT's syntax-checking cpp.
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cat > conftest.c <<EOF
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#ifdef __GNUC__
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yes;
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#endif
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EOF
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if AC_TRY_COMMAND(${CC-cc} -E conftest.c) | egrep yes >/dev/null 2>&1; then
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ac_cv_prog_gcc=yes
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else
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ac_cv_prog_gcc=no
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fi])])
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AC_DEFUN([LIB_AC_PROG_CC],
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[AC_BEFORE([$0], [AC_PROG_CPP])dnl
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AC_CHECK_TOOL(CC, gcc, gcc)
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: ${CC:=gcc}
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AC_PROG_CC
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test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
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])
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AC_DEFUN([LIB_AC_PROG_CXX],
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[AC_BEFORE([$0], [AC_PROG_CPP])dnl
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AC_CHECK_TOOL(CXX, g++, g++)
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if test -z "$CXX"; then
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AC_CHECK_TOOL(CXX, g++, c++, , , )
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: ${CXX:=g++}
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AC_PROG_CXX
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test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
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fi
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CXXFLAGS='$(CFLAGS)'
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])
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