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 $LFS_CFLAGS"
63 dnl Add #include for broken IRIX header files
65 *irix6*) AC_ADD_INCLUDE(<standards.h>)
68 # mmap on HPUX is completely broken...
69 AC_DEFINE(MMAP_BLACKLIST, 1, [Whether MMAP is broken])
70 if test "`uname -r`" = "B.11.00" -o "`uname -r`" = "B.11.11"; then
71 AC_MSG_WARN([Enabling HPUX 11.00/11.11 header bug workaround])
72 CFLAGS="$CFLAGS -Dpread=pread64 -Dpwrite=pwrite64"
74 if test "`uname -r`" = "B.11.23"; then
75 AC_MSG_WARN([Enabling HPUX 11.23 machine/sys/getppdp.h bug workaround])
76 CFLAGS="$CFLAGS -D_MACHINE_SYS_GETPPDP_INCLUDED"
80 AC_DEFINE(BROKEN_STRNDUP, 1, [Whether strndup is broken])
81 AC_DEFINE(BROKEN_STRNLEN, 1, [Whether strnlen is broken])
82 if test "${GCC}" != "yes"; then
83 ## for funky AIX compiler using strncpy()
84 CFLAGS="$CFLAGS -D_LINUX_SOURCE_COMPAT -qmaxmem=32000"
88 # this brings in socklen_t
89 AC_N_DEFINE(_XOPEN_SOURCE,600)
90 AC_N_DEFINE(_OSF_SOURCE)
93 # VOS may need to have POSIX support and System V compatibility enabled.
97 *-D_POSIX_C_SOURCE*);;
99 CFLAGS="$CFLAGS -D_POSIX_C_SOURCE=200112L"
100 AC_DEFINE(_POSIX_C_SOURCE, 200112L, [Whether to enable POSIX support])
104 *-D_SYSV*|*-D_SVID_SOURCE*);;
106 CFLAGS="$CFLAGS -D_SYSV"
107 AC_DEFINE(_SYSV, 1, [Whether to enable System V compatibility])
113 # Do not check for standards.h on darwin, we get nasty warnings on
114 # OS/X Lion. Probably a positive-list of OS'es like IRIX and AIX
115 # would be the better choice, but this seems to work fine
121 AC_CHECK_HEADERS([standards.h])
125 # Solaris needs HAVE_LONG_LONG defined
126 AC_CHECK_TYPES(long long)
129 AC_CHECK_SIZEOF(char)
130 AC_CHECK_SIZEOF(short)
131 AC_CHECK_SIZEOF(long)
132 AC_CHECK_SIZEOF(long long)
134 AC_CHECK_TYPE(int8_t, char)
135 AC_CHECK_TYPE(uint8_t, unsigned char)
136 AC_CHECK_TYPE(int16_t, short)
137 AC_CHECK_TYPE(uint16_t, unsigned short)
139 if test $ac_cv_sizeof_int -eq 4 ; then
140 AC_CHECK_TYPE(int32_t, int)
141 AC_CHECK_TYPE(uint32_t, unsigned int)
142 elif test $ac_cv_size_long -eq 4 ; then
143 AC_CHECK_TYPE(int32_t, long)
144 AC_CHECK_TYPE(uint32_t, unsigned long)
146 AC_MSG_ERROR([LIBREPLACE no 32-bit type found])
149 AC_CHECK_TYPE(int64_t, long long)
150 AC_CHECK_TYPE(uint64_t, unsigned long long)
152 AC_CHECK_TYPE(size_t, unsigned int)
153 AC_CHECK_TYPE(ssize_t, int)
155 AC_CHECK_SIZEOF(off_t)
156 AC_CHECK_SIZEOF(size_t)
157 AC_CHECK_SIZEOF(ssize_t)
159 AC_CHECK_TYPES([intptr_t, uintptr_t, ptrdiff_t])
161 if test x"$ac_cv_type_long_long" != x"yes";then
162 AC_MSG_ERROR([LIBREPLACE needs type 'long long'])
164 if test $ac_cv_sizeof_long_long -lt 8;then
165 AC_MSG_ERROR([LIBREPLACE needs sizeof(long long) >= 8])
168 ############################################
169 # check if the compiler can do immediate structures
170 AC_SUBST(libreplace_cv_immediate_structures)
171 AC_CACHE_CHECK([for immediate structures],libreplace_cv_immediate_structures,[
175 typedef struct {unsigned x;} FOOBAR;
176 #define X_FOOBAR(x) ((FOOBAR) { x })
177 #define FOO_ONE X_FOOBAR(1)
179 static const struct {
184 static const FOOBAR f3[] = {FOO_ONE};
186 libreplace_cv_immediate_structures=yes,
187 libreplace_cv_immediate_structures=no,
188 libreplace_cv_immediate_structures=cross)
190 if test x"$libreplace_cv_immediate_structures" = x"yes"; then
191 AC_DEFINE(HAVE_IMMEDIATE_STRUCTURES,1,[Whether the compiler supports immediate structures])
194 AC__LIBREPLACE_ONLY_CC_CHECKS_END
195 ]) dnl end AC_LIBREPLACE_CC_CHECKS