AC_MSG_CHECKING(version of the package)
if test -f ${srcdir}/.version; then
- VERSION=`cat ${srcdir}/.version`
+ { read VERSION; } < ${srcdir}/.version
AC_MSG_RESULT($VERSION)
else
VERSION="0.0.0"
AC_DEFUN(DD_COPT, [
AC_CACHE_CHECK(whether $$1 accepts -$2,ucsim_cv_$1$2,
cat >_test_.c <<EOF
-#include <stdio.h>
int main(void) {return(0);}
EOF
$$1 -v -$2 -c _test_.c 1>&5 2>&5
rm -f _test_.* a.out)
])
+# DD_COPT_NO_IGNORE macro checks if the compiler specified as the
+# 1st parameter supports and doesn't ignore option specified as the
+# 2nd parameter
+# For example: DD_COPT_NO_IGNORE(CXX, fPIC)
+
+AC_DEFUN(DD_COPT_NO_IGNORE, [
+AC_CACHE_CHECK(whether $$1 accepts and doesn't ignore -$2,ucsim_cv_$1$2,
+cat >_test_.c <<EOF
+int main(void) {return(0);}
+EOF
+ucsim_cv_$1$2=$($$1 -v -$2 -c _test_.c 2>&1 1>&5)
+if test "$?" = "0"; then
+ expr "$ucsim_cv_$1$2" : '.*'-$2'.*ignored' 1>&5 2>&5
+ if test "$?" = "0"; then
+ ucsim_cv_$1$2="no"
+ else
+ ucsim_cv_$1$2="yes"
+ fi
+else
+ ucsim_cv_$1$2="no"
+fi
+rm -f _test_.* a.out)
+])
+
# Checking characteristics of compilers and other programs
# --------------------------------------------------------
ac_cv_sizeof_long_long=4
fi
-if test "$cross_compiling" = "no"
-then
- AC_C_BIGENDIAN
-else
-#echo "CROSS ENDIAN"
- if $CXX -v 2>&1|grep "mingw" >/dev/null 2>&1; then
- ac_cv_c_bigendian=no
- else
- : # FIXME
- fi
-#echo "CROSS ENDIAN DONE"
+# SDCC_BUILD_BIGENDIAN ([ACTION-IF-TRUE], [ACTION-IF-FALSE], [ACTION-IF-UNKNOWN])
+# -------------------------------------------------------------------------
+AC_DEFUN([SDCC_BUILD_BIGENDIAN],
+[AC_CACHE_CHECK(whether host machine byte ordering is bigendian, sdcc_cv_build_bigendian,
+[# See if sys/param.h defines the BYTE_ORDER macro.
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <sys/types.h>
+#include <sys/param.h>
+],
+[#if ! (defined BYTE_ORDER && defined BIG_ENDIAN && defined LITTLE_ENDIAN \
+ && BYTE_ORDER && BIG_ENDIAN && LITTLE_ENDIAN)
+ bogus endian macros
+#endif
+])],
+[# It does; now see whether it defined to BIG_ENDIAN or not.
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <sys/types.h>
+#include <sys/param.h>
+], [#if BYTE_ORDER != BIG_ENDIAN
+ not big endian
+#endif
+])], [sdcc_cv_build_bigendian=yes], [sdcc_cv_build_bigendian=no])],
+[# It does not; compile a test program.
+AC_RUN_IFELSE(
+[AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], [[
+ /* Are we little or big endian? From Harbison&Steele. */
+ union
+ {
+ long int l;
+ char c[sizeof (long int)];
+ } u;
+ u.l = 1;
+ return u.c[sizeof (long int) - 1] == 1;
+]])],
+ [sdcc_cv_build_bigendian=no],
+ [sdcc_cv_build_bigendian=yes],
+[# try to guess the endianness by grepping values into an object file
+ sdcc_cv_build_bigendian=unknown
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+[[short int ascii_mm[] = { 0x4249, 0x4765, 0x6E44, 0x6961, 0x6E53, 0x7953, 0 };
+short int ascii_ii[] = { 0x694C, 0x5454, 0x656C, 0x6E45, 0x6944, 0x6E61, 0 };
+void _ascii () { char *s = (char *) ascii_mm; s = (char *) ascii_ii; }
+short int ebcdic_ii[] = { 0x89D3, 0xE3E3, 0x8593, 0x95C5, 0x89C4, 0x9581, 0 };
+short int ebcdic_mm[] = { 0xC2C9, 0xC785, 0x95C4, 0x8981, 0x95E2, 0xA8E2, 0 };
+void _ebcdic () { char *s = (char *) ebcdic_mm; s = (char *) ebcdic_ii; }]],
+[[ _ascii (); _ebcdic (); ]])],
+[if grep BIGenDianSyS conftest.$ac_objext >/dev/null ; then
+ sdcc_cv_build_bigendian=yes
fi
+if grep LiTTleEnDian conftest.$ac_objext >/dev/null ; then
+ if test "$sdcc_cv_build_bigendian" = unknown; then
+ sdcc_cv_build_bigendian=no
+ else
+ # finding both strings is unlikely to happen, but who knows?
+ sdcc_cv_build_bigendian=unknown
+ fi
+fi])])])])
+case $sdcc_cv_build_bigendian in
+ yes)
+ m4_default([$1],
+ [AC_DEFINE([BUILD_WORDS_BIGENDIAN], 1,
+ [Define to 1 if your processor stores words with the most significant
+ byte first (like Motorola and SPARC, unlike Intel and VAX).])]) ;;
+ no)
+ $2 ;;
+ *)
+ m4_default([$3],
+ [AC_MSG_ERROR([unknown endianness
+presetting sdcc_cv_build_bigendian=no (or yes) will help])]) ;;
+esac
+])# SDCC_BUILD_BIGENDIAN
+
+SDCC_BUILD_BIGENDIAN
AC_CACHE_CHECK(whether preprocessor accepts -MM or -M,ucsim_cv_MM,
echo "#include <stdio.h>" >_test_.c
PICOPT=""
SHAREDLIB="no"
-DD_COPT(CXX, fPIC)
+DD_COPT_NO_IGNORE(CXX, fPIC)
if test "$ucsim_cv_CXXfPIC" = "yes"; then
PICOPT="-fPIC"
else
- DD_COPT(CXX, fpic)
+ DD_COPT_NO_IGNORE(CXX, fpic)
if test "$ucsim_cv_CXXfpic" = "yes"; then
PICOPT="-fpic"
fi
if test "$PICOPT"x != "x"; then
SHAREDLIB="yes"
fi
-# If this is Cygwin neither use Position Independant Code
-# nor build .so
-# Quick + dirty by Bernhard
-# FIXME
-if $CXX --version 2>&1 | grep -i cygming 1>&5 2>&5 || $CXX --version 2>&1 | grep -i cygwin 1>&5 2>&5; then
- PICOPT=""
- SHAREDLIB="no"
-fi
AC_SUBST(SHAREDLIB)
AC_SUBST(PICOPT)
projects / fw / sdcc / blobdiff