mirror of
https://github.com/netwide-assembler/nasm.git
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1fb908c0db
OpenWatcom 1.8 has a C99 mode, which implements _Bool and <stdbool.h>. Unfortunately the implementation is broken, and doesn't let _Bool be implicitly converted to integer (as required by the C99 spec). Detect this case in autoconf.
155 lines
4.2 KiB
Plaintext
155 lines
4.2 KiB
Plaintext
dnl Process this file with autoconf 2.61 or later to produce
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dnl a configure script.
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AC_PREREQ(2.61)
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AC_INIT(config.h.in)
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AC_CONFIG_HEADERS(config.h)
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dnl Check for broken VPATH handling on older NetBSD makes.
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AC_DEFUN(AC_PROG_MAKE_VPATHOK,
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[AC_MSG_CHECKING(whether ${MAKE-make} has sane VPATH handling)
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set dummy ${MAKE-make}; ac_make=`echo "[$]2" | sed 'y%./+-%__p_%'`
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AC_CACHE_VAL(ac_cv_prog_make_vpathok,
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[mkdir conftestdir
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cat > conftestdir/conftestmake <<\EOF
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VPATH = ..
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conftestfoo: conftestbar
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@echo ac_make2temp=ok
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conftestbar: conftestbaz
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@echo ac_maketemp=broken
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@touch conftestbar
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EOF
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echo > conftestbaz # these two lines need to be...
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echo > conftestbar # ... in this order not the other
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changequote(, )dnl
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unset ac_maketemp
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unset ac_make2temp
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# GNU make sometimes prints "make[1]: Entering...", which would confuse us.
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eval `cd conftestdir; ${MAKE-make} -f conftestmake 2>/dev/null | grep temp=`
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changequote([, ])dnl
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if test -n "$ac_maketemp"; then
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ac_cv_prog_make_vpathok=no
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else
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if test -n "$ac_make2temp"; then
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ac_cv_prog_make_vpathok=yes
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else
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ac_cv_prog_make_vpathok=no
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fi
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fi
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rm -rf conftestdir
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rm -f conftestbar conftestbaz])dnl
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if test $ac_cv_prog_make_vpathok = yes; then
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AC_MSG_RESULT(yes)
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else
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AC_MSG_RESULT(no)
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fi
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])
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AC_PREFIX_PROGRAM(nasm)
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dnl Checks for programs.
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dnl Consider AC_USE_SYSTEM_EXTENSIONS if autoconf 2.61 is OK in the future
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AC_USE_SYSTEM_EXTENSIONS
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AC_PROG_CC
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AC_PROG_LN_S
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AC_PROG_MAKE_SET
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if test -f nasm.c; then
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# we're building in the source dir, so we don't need this check at all
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ac_cv_prog_make_vpathok=yes
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else
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AC_PROG_MAKE_VPATHOK
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fi
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AC_PROG_INSTALL
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dnl If we have gcc, add appropriate options
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PA_ADD_CFLAGS([-W])
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PA_ADD_CFLAGS([-Wall])
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PA_ADD_CFLAGS([-std=c99])
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PA_ADD_CFLAGS([-pedantic])
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dnl Look for programs...
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AC_CHECK_PROGS(NROFF, nroff, echo)
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AC_CHECK_PROGS(ACRODIST, acrodist, false)
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AC_CHECK_PROGS(PS2PDF, ps2pdf, false)
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AC_CHECK_PROGS(PSTOPDF, pstopdf, false)
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dnl Checks for header files.
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AC_HEADER_STDC
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if test $ac_cv_header_stdc = no; then
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AC_MSG_ERROR([NASM requires ANSI C header files to compile])
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fi
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AC_CHECK_HEADERS(limits.h)
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if test $ac_cv_header_limits_h = no; then
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AC_MSG_ERROR([NASM requires '<limits.h>' to compile])
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fi
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dnl Check for <inttypes.h> or add a substitute version
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AC_CHECK_HEADERS(inttypes.h, , CFLAGS="$CFLAGS -I\$(top_srcdir)/inttypes")
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dnl The standard header for str*casecmp is <strings.h>
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AC_CHECK_HEADERS(strings.h)
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dnl Look for <stdbool.h>
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AC_CHECK_HEADERS(stdbool.h)
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dnl Checks for typedefs, structures, and compiler characteristics.
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AC_C_CONST
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AC_C_INLINE
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AC_C_RESTRICT
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AC_TYPE_SIZE_T
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PA_WORKING_BOOL
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AC_C_BIGENDIAN(AC_DEFINE(WORDS_BIGENDIAN),AC_DEFINE(WORDS_LITTLEENDIAN))
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AH_TEMPLATE(WORDS_BIGENDIAN,
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[Define to 1 if your processor stores words with the most significant
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byte first (like Motorola and SPARC, unlike Intel and VAX).])
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AH_TEMPLATE(WORDS_LITTLEENDIAN,
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[Define to 1 if your processor stores words with the least significant
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byte first (like Intel and VAX, unlike Motorola and SPARC).])
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dnl Checks for library functions.
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AC_SUBST(XOBJS)
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AC_CHECK_FUNCS(strcspn, ,
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AC_MSG_ERROR([NASM requires ANSI C (specifically, "strcspn")]))
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AC_CHECK_FUNCS(strspn, ,
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AC_MSG_ERROR([NASM requires ANSI C (specifically, "strspn")]))
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missing=true
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AC_CHECK_FUNCS([vsnprintf _vsnprintf], missing=false)
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if $missing; then
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XOBJS="$XOBJS lib/vsnprintf.o"
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fi
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missing=true
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AC_CHECK_FUNCS([snprintf _snprintf], missing=false)
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if $missing; then
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XOBJS="$XOBJS lib/snprintf.o"
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fi
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AC_CHECK_FUNCS(strcasecmp stricmp)
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AC_CHECK_FUNCS(strncasecmp strnicmp)
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AC_CHECK_FUNCS(strsep)
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AC_CHECK_FUNCS(getuid)
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AC_CHECK_FUNCS(getgid)
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dnl Check for functions that might not be declared in the headers for
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dnl various idiotic reasons (mostly because of library authors
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dnl abusing the meaning of __STRICT_ANSI__)
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AC_CHECK_DECLS(strcasecmp)
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AC_CHECK_DECLS(stricmp)
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AC_CHECK_DECLS(strncasecmp)
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AC_CHECK_DECLS(strnicmp)
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AC_CHECK_DECLS(strsep)
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if test $ac_cv_prog_make_vpathok = no; then
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echo Copying generated srcs into build directory to compensate for VPATH breakage
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for file in macros.c insnsa.c insnsd.c insnsn.c insnsi.h version.h version.mac; do
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if test ! -f $file; then cp -p ${srcdir}/${file} .; fi
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done
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fi
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AC_OUTPUT_COMMANDS([mkdir -p output])
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AC_OUTPUT(Makefile rdoff/Makefile doc/Makefile)
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