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 $LFS_CFLAGS"
63 dnl Add #include for broken IRIX header files
65 *irix6*) AC_ADD_INCLUDE(<standards.h>)
66 AC_N_DEFINE(_XOPEN_SOURCE,600)
69 # mmap on HPUX is completely broken...
70 AC_DEFINE(MMAP_BLACKLIST, 1, [Whether MMAP is broken])
71 if test "`uname -r`" = "B.11.00" -o "`uname -r`" = "B.11.11"; then
72 AC_MSG_WARN([Enabling HPUX 11.00/11.11 header bug workaround])
73 CFLAGS="$CFLAGS -Dpread=pread64 -Dpwrite=pwrite64"
75 if test "`uname -r`" = "B.11.23"; then
76 AC_MSG_WARN([Enabling HPUX 11.23 machine/sys/getppdp.h bug workaround])
77 CFLAGS="$CFLAGS -D_MACHINE_SYS_GETPPDP_INCLUDED"
81 AC_DEFINE(BROKEN_STRNDUP, 1, [Whether strndup is broken])
82 AC_DEFINE(BROKEN_STRNLEN, 1, [Whether strnlen is broken])
83 if test "${GCC}" != "yes"; then
84 ## for funky AIX compiler using strncpy()
85 CFLAGS="$CFLAGS -D_LINUX_SOURCE_COMPAT -qmaxmem=32000"
89 # this brings in socklen_t
90 AC_N_DEFINE(_XOPEN_SOURCE,600)
91 AC_N_DEFINE(_OSF_SOURCE)
94 # VOS may need to have POSIX support and System V compatibility enabled.
98 *-D_POSIX_C_SOURCE*);;
100 CFLAGS="$CFLAGS -D_POSIX_C_SOURCE=200112L"
101 AC_DEFINE(_POSIX_C_SOURCE, 200112L, [Whether to enable POSIX support])
105 *-D_SYSV*|*-D_SVID_SOURCE*);;
107 CFLAGS="$CFLAGS -D_SYSV"
108 AC_DEFINE(_SYSV, 1, [Whether to enable System V compatibility])
114 # Do not check for standards.h on darwin, we get nasty warnings on
115 # OS/X Lion. Probably a positive-list of OS'es like IRIX and AIX
116 # would be the better choice, but this seems to work fine
122 AC_CHECK_HEADERS([standards.h])
126 # Solaris needs HAVE_LONG_LONG defined
127 AC_CHECK_TYPES(long long)
130 AC_CHECK_SIZEOF(char)
131 AC_CHECK_SIZEOF(short)
132 AC_CHECK_SIZEOF(long)
133 AC_CHECK_SIZEOF(long long)
135 AC_CHECK_TYPE(int8_t, char)
136 AC_CHECK_TYPE(uint8_t, unsigned char)
137 AC_CHECK_TYPE(int16_t, short)
138 AC_CHECK_TYPE(uint16_t, unsigned short)
140 if test $ac_cv_sizeof_int -eq 4 ; then
141 AC_CHECK_TYPE(int32_t, int)
142 AC_CHECK_TYPE(uint32_t, unsigned int)
143 elif test $ac_cv_size_long -eq 4 ; then
144 AC_CHECK_TYPE(int32_t, long)
145 AC_CHECK_TYPE(uint32_t, unsigned long)
147 AC_MSG_ERROR([LIBREPLACE no 32-bit type found])
150 AC_CHECK_TYPE(int64_t, long long)
151 AC_CHECK_TYPE(uint64_t, unsigned long long)
153 AC_CHECK_TYPE(size_t, unsigned int)
154 AC_CHECK_TYPE(ssize_t, int)
156 AC_CHECK_SIZEOF(off_t)
157 AC_CHECK_SIZEOF(size_t)
158 AC_CHECK_SIZEOF(ssize_t)
160 AC_CHECK_TYPES([intptr_t, uintptr_t, ptrdiff_t])
162 if test x"$ac_cv_type_long_long" != x"yes";then
163 AC_MSG_ERROR([LIBREPLACE needs type 'long long'])
165 if test $ac_cv_sizeof_long_long -lt 8;then
166 AC_MSG_ERROR([LIBREPLACE needs sizeof(long long) >= 8])
169 ############################################
170 # check if the compiler can do immediate structures
171 AC_SUBST(libreplace_cv_immediate_structures)
172 AC_CACHE_CHECK([for immediate structures],libreplace_cv_immediate_structures,[
176 typedef struct {unsigned x;} FOOBAR;
177 #define X_FOOBAR(x) ((FOOBAR) { x })
178 #define FOO_ONE X_FOOBAR(1)
180 static const struct {
185 static const FOOBAR f3[] = {FOO_ONE};
187 libreplace_cv_immediate_structures=yes,
188 libreplace_cv_immediate_structures=no,
189 libreplace_cv_immediate_structures=cross)
191 if test x"$libreplace_cv_immediate_structures" = x"yes"; then
192 AC_DEFINE(HAVE_IMMEDIATE_STRUCTURES,1,[Whether the compiler supports immediate structures])
195 AC__LIBREPLACE_ONLY_CC_CHECKS_END
196 ]) dnl end AC_LIBREPLACE_CC_CHECKS