2 AC_DEFUN_ONCE(AC__LIBREPLACE_ONLY_CC_CHECKS_START,
4 echo "LIBREPLACE_CC_CHECKS: START"
7 AC_DEFUN_ONCE(AC__LIBREPLACE_ONLY_CC_CHECKS_END,
9 echo "LIBREPLACE_CC_CHECKS: END"
14 dnl AC_LIBREPLACE_CC_CHECKS
16 dnl Note: we need to use m4_define instead of AC_DEFUN because
17 dnl of the ordering of tests
20 m4_define(AC_LIBREPLACE_CC_CHECKS,
22 AC__LIBREPLACE_ONLY_CC_CHECKS_START
24 dnl stop the C89 attempt by autoconf - if autoconf detects -Ae it will enable it
25 dnl which conflicts with C99 on HPUX
32 dnl don't try for C99 if we are using gcc, as otherwise we
33 dnl lose immediate structure constants
34 if test x"$GCC" != x"yes" ; then
38 if test x"$GCC" = x"yes" ; then
39 AC_MSG_CHECKING([for version of gcc])
40 GCC_VERSION=`$CC -dumpversion`
41 AC_MSG_RESULT(${GCC_VERSION})
43 AC_USE_SYSTEM_EXTENSIONS
46 LIBREPLACE_C99_STRUCT_INIT([],[AC_MSG_WARN([c99 structure initializer are not supported])])
51 AC_N_DEFINE(_XOPEN_SOURCE_EXTENDED)
53 AC_MSG_CHECKING(checking getconf LFS_CFLAGS for large file support flags)
54 LFS_CFLAGS=`(getconf LFS_CFLAGS) 2>/dev/null` || LFS_CFLAGS=""
56 AC_MSG_RESULT(${LFS_CFLAGS})
57 if test "x$LFS_CFLAGS" != 'x-1' || test "x$LFS_CFLAGS" != "xundefined"; then
58 CFLAGS="$CFLAGS $LFS_CFLAGS"
63 dnl Add #include for broken IRIX header files
65 *irix6*) AC_ADD_INCLUDE(<standards.h>)
66 AC_N_DEFINE(_XOPEN_SOURCE,600)
67 AC_N_DEFINE(_BSD_TYPES)
70 # mmap on HPUX is completely broken...
71 AC_DEFINE(MMAP_BLACKLIST, 1, [Whether MMAP is broken])
72 if test "`uname -r`" = "B.11.00" -o "`uname -r`" = "B.11.11"; then
73 AC_MSG_WARN([Enabling HPUX 11.00/11.11 header bug workaround])
74 CFLAGS="$CFLAGS -Dpread=pread64 -Dpwrite=pwrite64"
76 if test "`uname -r`" = "B.11.23"; then
77 AC_MSG_WARN([Enabling HPUX 11.23 machine/sys/getppdp.h bug workaround])
78 CFLAGS="$CFLAGS -D_MACHINE_SYS_GETPPDP_INCLUDED"
82 AC_DEFINE(BROKEN_STRNDUP, 1, [Whether strndup is broken])
83 AC_DEFINE(BROKEN_STRNLEN, 1, [Whether strnlen is broken])
84 if test "${GCC}" != "yes"; then
85 ## for funky AIX compiler using strncpy()
86 CFLAGS="$CFLAGS -D_LINUX_SOURCE_COMPAT -qmaxmem=32000"
90 # this brings in socklen_t
91 AC_N_DEFINE(_XOPEN_SOURCE,600)
92 AC_N_DEFINE(_OSF_SOURCE)
95 # VOS may need to have POSIX support and System V compatibility enabled.
99 *-D_POSIX_C_SOURCE*);;
101 CFLAGS="$CFLAGS -D_POSIX_C_SOURCE=200112L"
102 AC_DEFINE(_POSIX_C_SOURCE, 200112L, [Whether to enable POSIX support])
106 *-D_SYSV*|*-D_SVID_SOURCE*);;
108 CFLAGS="$CFLAGS -D_SYSV"
109 AC_DEFINE(_SYSV, 1, [Whether to enable System V compatibility])
115 # Do not check for standards.h on darwin, we get nasty warnings on
116 # OS/X Lion. Probably a positive-list of OS'es like IRIX and AIX
117 # would be the better choice, but this seems to work fine
123 AC_CHECK_HEADERS([standards.h])
127 # Solaris needs HAVE_LONG_LONG defined
128 AC_CHECK_TYPES(long long)
131 AC_CHECK_SIZEOF(char)
132 AC_CHECK_SIZEOF(short)
133 AC_CHECK_SIZEOF(long)
134 AC_CHECK_SIZEOF(long long)
136 AC_CHECK_TYPE(int8_t, char)
137 AC_CHECK_TYPE(uint8_t, unsigned char)
138 AC_CHECK_TYPE(int16_t, short)
139 AC_CHECK_TYPE(uint16_t, unsigned short)
141 if test $ac_cv_sizeof_int -eq 4 ; then
142 AC_CHECK_TYPE(int32_t, int)
143 AC_CHECK_TYPE(uint32_t, unsigned int)
144 elif test $ac_cv_size_long -eq 4 ; then
145 AC_CHECK_TYPE(int32_t, long)
146 AC_CHECK_TYPE(uint32_t, unsigned long)
148 AC_MSG_ERROR([LIBREPLACE no 32-bit type found])
151 AC_CHECK_TYPE(int64_t, long long)
152 AC_CHECK_TYPE(uint64_t, unsigned long long)
154 AC_CHECK_TYPE(size_t, unsigned int)
155 AC_CHECK_TYPE(ssize_t, int)
157 AC_CHECK_SIZEOF(off_t)
158 AC_CHECK_SIZEOF(size_t)
159 AC_CHECK_SIZEOF(ssize_t)
161 AC_CHECK_TYPES([intptr_t, uintptr_t, ptrdiff_t])
163 if test x"$ac_cv_type_long_long" != x"yes";then
164 AC_MSG_ERROR([LIBREPLACE needs type 'long long'])
166 if test $ac_cv_sizeof_long_long -lt 8;then
167 AC_MSG_ERROR([LIBREPLACE needs sizeof(long long) >= 8])
170 ############################################
171 # check if the compiler can do immediate structures
172 AC_SUBST(libreplace_cv_immediate_structures)
173 AC_CACHE_CHECK([for immediate structures],libreplace_cv_immediate_structures,[
177 typedef struct {unsigned x;} FOOBAR;
178 #define X_FOOBAR(x) ((FOOBAR) { x })
179 #define FOO_ONE X_FOOBAR(1)
181 static const struct {
186 static const FOOBAR f3[] = {FOO_ONE};
188 libreplace_cv_immediate_structures=yes,
189 libreplace_cv_immediate_structures=no,
190 libreplace_cv_immediate_structures=cross)
192 if test x"$libreplace_cv_immediate_structures" = x"yes"; then
193 AC_DEFINE(HAVE_IMMEDIATE_STRUCTURES,1,[Whether the compiler supports immediate structures])
196 AC__LIBREPLACE_ONLY_CC_CHECKS_END
197 ]) dnl end AC_LIBREPLACE_CC_CHECKS