Merge CV, ver=5.1; ops/methods from HV, and interface from CV where possible

[goodguy/history.git] / cinelerra-5.1 / libzmpeg3 / a52dec-0.7.3 / acinclude.m4

diff --git a/cinelerra-5.1/libzmpeg3/a52dec-0.7.3/acinclude.m4 b/cinelerra-5.1/libzmpeg3/a52dec-0.7.3/acinclude.m4
new file mode 100644 (file)
index 0000000..38a8f44
--- /dev/null
+++ b/cinelerra-5.1/libzmpeg3/a52dec-0.7.3/acinclude.m4
@@ -0,0 +1,69 @@
+dnl AC_C_ATTRIBUTE_ALIGNED
+dnl define ATTRIBUTE_ALIGNED_MAX to the maximum alignment if this is supported
+AC_DEFUN([AC_C_ATTRIBUTE_ALIGNED],
+    [AC_CACHE_CHECK([__attribute__ ((aligned ())) support],
+       [ac_cv_c_attribute_aligned],
+       [ac_cv_c_attribute_aligned=0
+       for ac_cv_c_attr_align_try in 2 4 8 16 32 64; do
+           AC_TRY_COMPILE([],
+               [static char c __attribute__ ((aligned($ac_cv_c_attr_align_try))) = 0; return c;],
+               [ac_cv_c_attribute_aligned=$ac_cv_c_attr_align_try])
+       done])
+    if test x"$ac_cv_c_attribute_aligned" != x"0"; then
+       AC_DEFINE_UNQUOTED([ATTRIBUTE_ALIGNED_MAX],
+           [$ac_cv_c_attribute_aligned],[maximum supported data alignment])
+    fi])
+
+dnl AC_TRY_CFLAGS (CFLAGS, [ACTION-IF-WORKS], [ACTION-IF-FAILS])
+dnl check if $CC supports a given set of cflags
+AC_DEFUN([AC_TRY_CFLAGS],
+    [AC_MSG_CHECKING([if $CC supports $1 flags])
+    SAVE_CFLAGS="$CFLAGS"
+    CFLAGS="$1"
+    AC_TRY_COMPILE([],[],[ac_cv_try_cflags_ok=yes],[ac_cv_try_cflags_ok=no])
+    CFLAGS="$SAVE_CFLAGS"
+    AC_MSG_RESULT([$ac_cv_try_cflags_ok])
+    if test x"$ac_cv_try_cflags_ok" = x"yes"; then
+       ifelse([$2],[],[:],[$2])
+    else
+       ifelse([$3],[],[:],[$3])
+    fi])
+
+
+dnl AC_CHECK_GENERATE_INTTYPES_H (INCLUDE-DIRECTORY)
+dnl generate a default inttypes.h if the header file does not exist already
+AC_DEFUN([AC_CHECK_GENERATE_INTTYPES],
+    [AC_CHECK_HEADER([inttypes.h],[],
+       [AC_CHECK_SIZEOF([char])
+       AC_CHECK_SIZEOF([short])
+       AC_CHECK_SIZEOF([int])
+       if test x"$ac_cv_sizeof_char" != x"1" -o \
+           x"$ac_cv_sizeof_short" != x"2" -o \
+           x"$ac_cv_sizeof_int" != x"4"; then
+           AC_MSG_ERROR([can not build a default inttypes.h])
+       fi
+       cat >$1/inttypes.h << EOF
+/* default inttypes.h for people who do not have it on their system */
+
+#ifndef _INTTYPES_H
+#define _INTTYPES_H
+#if (!defined __int8_t_defined) && (!defined __BIT_TYPES_DEFINED__)
+#define __int8_t_defined
+typedef signed char int8_t;
+typedef signed short int16_t;
+typedef signed int int32_t;
+#ifdef ARCH_X86
+typedef signed long long int64_t;
+#endif
+#endif
+#if (!defined _LINUX_TYPES_H)
+typedef unsigned char uint8_t;
+typedef unsigned short uint16_t;
+typedef unsigned int uint32_t;
+#ifdef ARCH_X86
+typedef unsigned long long uint64_t;
+#endif
+#endif
+#endif
+EOF
+       ])])