mirror of
https://github.com/netwide-assembler/nasm.git
synced 2024-11-21 03:14:19 +08:00
50 lines
1.5 KiB
Plaintext
50 lines
1.5 KiB
Plaintext
dnl --------------------------------------------------------------------------
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dnl PA_ADD_CFLAGS()
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dnl
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dnl Attempt to add the given option to CFLAGS, if it doesn't break compilation
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dnl --------------------------------------------------------------------------
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AC_DEFUN(PA_ADD_CFLAGS,
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[AC_MSG_CHECKING([if $CC accepts $1])
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pa_add_cflags__old_cflags="$CFLAGS"
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CFLAGS="$CFLAGS $1"
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AC_TRY_LINK([#include <stdio.h>],
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[printf("Hello, World!\n");],
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AC_MSG_RESULT([yes])
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CFLAGS="$pa_add_cflags__old_cflags ifelse([$2],[],[$1],[$2])",
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AC_MSG_RESULT([no])
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CFLAGS="$pa_add_cflags__old_cflags")])
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dnl --------------------------------------------------------------------------
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dnl PA_HAVE_FUNC
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dnl
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dnl Look for a function with the specified arguments which could be
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dnl a builtin/intrinsic function.
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dnl --------------------------------------------------------------------------
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AC_DEFUN(PA_HAVE_FUNC,
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[AC_MSG_CHECKING([for $1])
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AC_TRY_LINK([], [(void)$1$2;],
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AC_MSG_RESULT([yes])
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AC_DEFINE(m4_toupper([HAVE_$1]), [1],
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[Define to 1 if you have the `$1' intrinsic function.]),
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AC_MSG_RESULT([no]))])
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dnl --------------------------------------------------------------------------
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dnl PA_LIBEXT
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dnl
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dnl Guess the library extension based on the object extension
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dnl --------------------------------------------------------------------------
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AC_DEFUN(PA_LIBEXT,
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[AC_MSG_CHECKING([for suffix of library files])
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if test x"$LIBEXT" = x; then
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case "$OBJEXT" in
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obj )
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LIBEXT=lib
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;;
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*)
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LIBEXT=a
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;;
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esac
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fi
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AC_MSG_RESULT([$LIBEXT])
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AC_SUBST([LIBEXT])])
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