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)
55 dnl Add #include for broken IRIX header files
57 *irix6*) AC_ADD_INCLUDE(<standards.h>)
60 # mmap on HPUX is completely broken...
61 AC_DEFINE(MMAP_BLACKLIST, 1, [Whether MMAP is broken])
62 if test "`uname -r`" = "B.11.00" -o "`uname -r`" = "B.11.11"; then
63 AC_MSG_WARN([Enabling HPUX 11.00/11.11 header bug workaround])
64 CFLAGS="$CFLAGS -Dpread=pread64 -Dpwrite=pwrite64"
66 if test "`uname -r`" = "B.11.23"; then
67 AC_MSG_WARN([Enabling HPUX 11.23 machine/sys/getppdp.h bug workaround])
68 CFLAGS="$CFLAGS -D_MACHINE_SYS_GETPPDP_INCLUDED"
72 AC_DEFINE(BROKEN_STRNDUP, 1, [Whether strndup is broken])
73 AC_DEFINE(BROKEN_STRNLEN, 1, [Whether strnlen is broken])
74 if test "${GCC}" != "yes"; then
75 ## for funky AIX compiler using strncpy()
76 CFLAGS="$CFLAGS -D_LINUX_SOURCE_COMPAT -qmaxmem=32000"
80 # this brings in socklen_t
81 AC_N_DEFINE(_XOPEN_SOURCE,600)
82 AC_N_DEFINE(_OSF_SOURCE)
85 # VOS may need to have POSIX support and System V compatibility enabled.
89 *-D_POSIX_C_SOURCE*);;
91 CFLAGS="$CFLAGS -D_POSIX_C_SOURCE=200112L"
92 AC_DEFINE(_POSIX_C_SOURCE, 200112L, [Whether to enable POSIX support])
96 *-D_SYSV*|*-D_SVID_SOURCE*);;
98 CFLAGS="$CFLAGS -D_SYSV"
99 AC_DEFINE(_SYSV, 1, [Whether to enable System V compatibility])
105 # Do not check for standards.h on darwin, we get nasty warnings on
106 # OS/X Lion. Probably a positive-list of OS'es like IRIX and AIX
107 # would be the better choice, but this seems to work fine
113 AC_CHECK_HEADERS([standards.h])
117 # Solaris needs HAVE_LONG_LONG defined
118 AC_CHECK_TYPES(long long)
121 AC_CHECK_SIZEOF(char)
122 AC_CHECK_SIZEOF(short)
123 AC_CHECK_SIZEOF(long)
124 AC_CHECK_SIZEOF(long long)
126 AC_CHECK_TYPE(int8_t, char)
127 AC_CHECK_TYPE(uint8_t, unsigned char)
128 AC_CHECK_TYPE(int16_t, short)
129 AC_CHECK_TYPE(uint16_t, unsigned short)
131 if test $ac_cv_sizeof_int -eq 4 ; then
132 AC_CHECK_TYPE(int32_t, int)
133 AC_CHECK_TYPE(uint32_t, unsigned int)
134 elif test $ac_cv_size_long -eq 4 ; then
135 AC_CHECK_TYPE(int32_t, long)
136 AC_CHECK_TYPE(uint32_t, unsigned long)
138 AC_MSG_ERROR([LIBREPLACE no 32-bit type found])
141 AC_CHECK_TYPE(int64_t, long long)
142 AC_CHECK_TYPE(uint64_t, unsigned long long)
144 AC_CHECK_TYPE(size_t, unsigned int)
145 AC_CHECK_TYPE(ssize_t, int)
147 AC_CHECK_SIZEOF(off_t)
148 AC_CHECK_SIZEOF(size_t)
149 AC_CHECK_SIZEOF(ssize_t)
151 AC_CHECK_TYPES([intptr_t, uintptr_t, ptrdiff_t])
153 if test x"$ac_cv_type_long_long" != x"yes";then
154 AC_MSG_ERROR([LIBREPLACE needs type 'long long'])
156 if test $ac_cv_sizeof_long_long -lt 8;then
157 AC_MSG_ERROR([LIBREPLACE needs sizeof(long long) >= 8])
160 ############################################
161 # check if the compiler can do immediate structures
162 AC_SUBST(libreplace_cv_immediate_structures)
163 AC_CACHE_CHECK([for immediate structures],libreplace_cv_immediate_structures,[
167 typedef struct {unsigned x;} FOOBAR;
168 #define X_FOOBAR(x) ((FOOBAR) { x })
169 #define FOO_ONE X_FOOBAR(1)
171 static const struct {
176 static const FOOBAR f3[] = {FOO_ONE};
178 libreplace_cv_immediate_structures=yes,
179 libreplace_cv_immediate_structures=no,
180 libreplace_cv_immediate_structures=cross)
182 if test x"$libreplace_cv_immediate_structures" = x"yes"; then
183 AC_DEFINE(HAVE_IMMEDIATE_STRUCTURES,1,[Whether the compiler supports immediate structures])
186 AC__LIBREPLACE_ONLY_CC_CHECKS_END
187 ]) dnl end AC_LIBREPLACE_CC_CHECKS