dnl -*- mode: autoconf -*- # serial 1 dnl Usage: dnl GTK_DOC_CHECK([minimum-gtk-doc-version]) AC_DEFUN([GTK_DOC_CHECK], [ AC_BEFORE([AC_PROG_LIBTOOL],[$0])dnl setup libtool first AC_BEFORE([AM_PROG_LIBTOOL],[$0])dnl setup libtool first dnl for overriding the documentation installation directory AC_ARG_WITH(html-dir, AC_HELP_STRING([--with-html-dir=PATH], [path to installed docs]),, [with_html_dir='${datadir}/gtk-doc/html']) HTML_DIR="$with_html_dir" AC_SUBST(HTML_DIR) dnl enable/disable documentation building AC_ARG_ENABLE(gtk-doc, AC_HELP_STRING([--enable-gtk-doc], [use gtk-doc to build documentation [default=no]]),, enable_gtk_doc=no) have_gtk_doc=no if test x$enable_gtk_doc = xyes; then if test -z "$PKG_CONFIG"; then AC_PATH_PROG(PKG_CONFIG, pkg-config, no) fi if test "$PKG_CONFIG" != "no" && $PKG_CONFIG --exists gtk-doc; then have_gtk_doc=yes fi dnl do we want to do a version check? ifelse([$1],[],, [gtk_doc_min_version=$1 if test "$have_gtk_doc" = yes; then AC_MSG_CHECKING([gtk-doc version >= $gtk_doc_min_version]) if $PKG_CONFIG --atleast-version $gtk_doc_min_version gtk-doc; then AC_MSG_RESULT(yes) else AC_MSG_RESULT(no) have_gtk_doc=no fi fi ]) if test "$have_gtk_doc" != yes; then enable_gtk_doc=no fi fi AM_CONDITIONAL(ENABLE_GTK_DOC, test x$enable_gtk_doc = xyes) AM_CONDITIONAL(GTK_DOC_USE_LIBTOOL, test -n "$LIBTOOL") ]) # AX_C_FLOAT_WORDS_BIGENDIAN ([ACTION-IF-TRUE], [ACTION-IF-FALSE], # [ACTION-IF-UNKNOWN]) # # Checks the ordering of words within a multi-word float. This check # is necessary because on some systems (e.g. certain ARM systems), the # float word ordering can be different from the byte ordering. In a # multi-word float context, "big-endian" implies that the word containing # the sign bit is found in the memory location with the lowest address. # This implemenation was inspired by the AC_C_BIGENDIAN macro in autoconf. # ------------------------------------------------------------------------- AC_DEFUN([AX_C_FLOAT_WORDS_BIGENDIAN], [AC_CACHE_CHECK(whether float word ordering is bigendian, ax_cv_c_float_words_bigendian, [ # The endianess is detected by first compiling C code that contains a special # double float value, then grepping the resulting object file for certain # strings of ascii values. The double is specially crafted to have a # binary representation that corresponds with a simple string. In this # implementation, the string "noonsees" was selected because the individual # word values ("noon" and "sees") are palindromes, thus making this test # byte-order agnostic. If grep finds the string "noonsees" in the object # file, the target platform stores float words in big-endian order. If grep # finds "seesnoon", float words are in little-endian order. If neither value # is found, the user is instructed to specify the ordering. ax_cv_c_float_words_bigendian=unknown AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ double d = 90904234967036810337470478905505011476211692735615632014797120844053488865816695273723469097858056257517020191247487429516932130503560650002327564517570778480236724525140520121371739201496540132640109977779420565776568942592.0; ]])], [ if strings - conftest.$ac_objext | grep noonsees >/dev/null ; then ax_cv_c_float_words_bigendian=yes fi if strings - conftest.$ac_objext | grep seesnoon >/dev/null ; then if test "$ax_cv_c_float_words_bigendian" = unknown; then ax_cv_c_float_words_bigendian=no else ax_cv_c_float_words_bigendian=unknown fi fi ])]) case $ax_cv_c_float_words_bigendian in yes) m4_default([$1], [AC_DEFINE([FLOAT_WORDS_BIGENDIAN], 1, [Define to 1 if your system stores words within floats with the most significant word first])]) ;; no) $2 ;; *) m4_default([$3], [AC_MSG_ERROR([ Unknown float word ordering. You need to manually preset ax_cv_c_float_words_bigendian=no (or yes) according to your system. ])]) ;; esac ])# AX_C_FLOAT_WORDS_BIGENDIAN dnl ========================================================================== dnl dnl Cairo-specific macros dnl m4_pattern_forbid([CAIRO]) m4_pattern_forbid([^cr_]) dnl ========================================================================== dnl Usage: dnl CAIRO_BIGENDIAN dnl AC_DEFUN([CAIRO_BIGENDIAN], [ case $host_os in darwin*) AH_VERBATIM([X_BYTE_ORDER], [ /* Deal with multiple architecture compiles on Mac OS X */ #ifdef __APPLE_CC__ #ifdef __BIG_ENDIAN__ #define WORDS_BIGENDIAN 1 #define FLOAT_WORDS_BIGENDIAN 1 #else #undef WORDS_BIGENDIAN #undef FLOAT_WORDS_BIGENDIAN #endif #endif ]) ;; *) AC_C_BIGENDIAN AX_C_FLOAT_WORDS_BIGENDIAN ;; esac ]) dnl CAIRO_CHECK_FUNCS_WITH_FLAGS(FUNCTION..., CFLAGS, LIBS dnl [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]) dnl Like AC_CHECK_FUNCS but with additional CFLAGS and LIBS dnl -------------------------------------------------------------------- AC_DEFUN([CAIRO_CHECK_FUNCS_WITH_FLAGS], [ _save_cflags="$CFLAGS" _save_libs="$LIBS" CFLAGS="$CFLAGS $2" LIBS="$LIBS $3" AC_CHECK_FUNCS($1, $4, $5) CFLAGS="$_save_cflags" LIBS="$_save_libs" ]) dnl CAIRO_CONFIG_COMMANDS is like AC_CONFIG_COMMANDS, except that: dnl dnl 1) It redirects the stdout of the command to the file. dnl 2) It does not recreate the file if contents didn't change. dnl AC_DEFUN([CAIRO_CONFIG_COMMANDS], [ AC_CONFIG_COMMANDS($1, [ _config_file=$1 _tmp_file=cairoconf.tmp AC_MSG_NOTICE([creating $_config_file]) { $2 } >> "$_tmp_file" || AC_MSG_ERROR([failed to write to $_tmp_file]) if cmp -s "$_tmp_file" "$_config_file"; then AC_MSG_NOTICE([$_config_file is unchanged]) rm -f "$_tmp_file" else mv "$_tmp_file" "$_config_file" || AC_MSG_ERROR([failed to update $_config_file]) fi ], $3) ]) dnl check compiler flags AC_DEFUN([CAIRO_CC_TRY_FLAG], [ AC_MSG_CHECKING([whether $CC supports $1]) _save_cflags="$CFLAGS" CFLAGS="$CFLAGS -Werror $1" AC_COMPILE_IFELSE([ ], [cairo_cc_flag=yes], [cairo_cc_flag=no]) CFLAGS="$_save_cflags" if test "x$cairo_cc_flag" = "xyes"; then ifelse([$2], , :, [$2]) else ifelse([$3], , :, [$3]) fi AC_MSG_RESULT([$cairo_cc_flag]) ]) dnl Usage: dnl CAIRO_CHECK_NATIVE_ATOMIC_PRIMITIVES AC_DEFUN([CAIRO_CHECK_NATIVE_ATOMIC_PRIMITIVES], [ AC_CACHE_CHECK([for native atomic primitives], cairo_cv_atomic_primitives, [ cairo_cv_atomic_primitives="none" AC_TRY_LINK([int atomic_add(int i) { return __sync_fetch_and_add (&i, 1); }], [], cairo_cv_atomic_primitives="Intel" ) ]) if test "x$cairo_cv_atomic_primitives" = xIntel; then AC_DEFINE(HAVE_INTEL_ATOMIC_PRIMITIVES, 1, [Enable if your compiler supports the Intel __sync_* atomic primitives]) fi ]) dnl Usage: dnl CAIRO_CHECK_ATOMIC_OP_NEEDS_MEMORY_BARRIER AC_DEFUN([CAIRO_CHECK_ATOMIC_OP_NEEDS_MEMORY_BARRIER], [ AC_CACHE_CHECK([whether atomic ops require a memory barrier], cairo_cv_atomic_op_needs_memory_barrier, [ case $host_cpu in i?86) cairo_cv_atomic_op_needs_memory_barrier="no" ;; x86_64) cairo_cv_atomic_op_needs_memory_barrier="no" ;; arm*) cairo_cv_atomic_op_needs_memory_barrier="no" ;; *) cairo_cv_atomic_op_needs_memory_barrier="yes" ;; esac ]) if test "x$cairo_cv_atomic_op_needs_memory_barrier" = "xyes"; then AC_DEFINE_UNQUOTED(ATOMIC_OP_NEEDS_MEMORY_BARRIER, 1, [whether memory barriers are needed around atomic operations]) fi ]) dnl Parse Version.mk and declare m4 variables out of it m4_define([CAIRO_PARSE_VERSION], m4_translit( m4_bpatsubst(m4_include(cairo-version.h), [^.define \([a-zA-Z0-9_]*\) *\([0-9][0-9]*\)], [[m4_define(\1, \[\2\])]]), [A-Z], [a-z]) ) dnl [m4_newline] didn't appear until autoconf 2.62 m4_ifdef([m4_newline],,m4_define([m4_newline],[ ]))