| 1 |
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| 2 | AC_DEFUN_ONCE(AC__LIBREPLACE_ONLY_CC_CHECKS_START,
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| 3 | [
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| 4 | echo "LIBREPLACE_CC_CHECKS: START"
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| 5 | ])
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| 6 |
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| 7 | AC_DEFUN_ONCE(AC__LIBREPLACE_ONLY_CC_CHECKS_END,
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| 8 | [
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| 9 | echo "LIBREPLACE_CC_CHECKS: END"
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| 10 | ])
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| 11 |
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| 12 | dnl
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| 13 | dnl
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| 14 | dnl AC_LIBREPLACE_CC_CHECKS
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| 15 | dnl
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| 16 | dnl Note: we need to use m4_define instead of AC_DEFUN because
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| 17 | dnl of the ordering of tests
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| 18 | dnl
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| 19 | dnl
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| 20 | m4_define(AC_LIBREPLACE_CC_CHECKS,
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| 21 | [
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| 22 | AC__LIBREPLACE_ONLY_CC_CHECKS_START
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| 23 |
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| 24 | dnl stop the C89 attempt by autoconf - if autoconf detects -Ae it will enable it
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| 25 | dnl which conflicts with C99 on HPUX
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| 26 | ac_cv_prog_cc_Ae=no
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| 27 |
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| 28 | savedCFLAGS=$CFLAGS
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| 29 | AC_PROG_CC
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| 30 | CFLAGS=$savedCFLAGS
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| 31 |
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| 32 | dnl don't try for C99 if we are using gcc, as otherwise we
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| 33 | dnl lose immediate structure constants
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| 34 | if test x"$GCC" != x"yes" ; then
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| 35 | AC_PROG_CC_C99
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| 36 | fi
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| 37 |
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| 38 | if test x"$GCC" = x"yes" ; then
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| 39 | AC_MSG_CHECKING([for version of gcc])
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| 40 | GCC_VERSION=`$CC -dumpversion`
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| 41 | AC_MSG_RESULT(${GCC_VERSION})
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| 42 | fi
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| 43 | AC_USE_SYSTEM_EXTENSIONS
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| 44 | AC_C_BIGENDIAN
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| 45 | AC_C_INLINE
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| 46 | LIBREPLACE_C99_STRUCT_INIT([],[AC_MSG_WARN([c99 structure initializer are not supported])])
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| 47 |
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| 48 | AC_PROG_INSTALL
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| 49 |
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| 50 | AC_ISC_POSIX
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| 51 | AC_EXTENSION_FLAG(_XOPEN_SOURCE_EXTENDED)
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| 52 | AC_EXTENSION_FLAG(_OSF_SOURCE)
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| 53 |
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| 54 | AC_SYS_LARGEFILE
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| 55 |
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| 56 | dnl Add #include for broken IRIX header files
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| 57 | case "$host_os" in
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| 58 | *irix6*) AC_ADD_INCLUDE(<standards.h>)
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| 59 | ;;
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| 60 | *hpux*)
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| 61 | # mmap on HPUX is completely broken...
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| 62 | AC_DEFINE(MMAP_BLACKLIST, 1, [Whether MMAP is broken])
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| 63 | if test "`uname -r`" = "B.11.11"; then
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| 64 | AC_MSG_WARN([Enabling HPUX 11.11 header bug workaround])
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| 65 | CFLAGS="$CFLAGS -D_LARGEFILE64_SUPPORT -D__LP64__ -DO_LARGEFILE=04000"
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| 66 | fi
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| 67 | if test "`uname -r`" = "B.11.23"; then
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| 68 | AC_MSG_WARN([Enabling HPUX 11.23 machine/sys/getppdp.h bug workaround])
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| 69 | CFLAGS="$CFLAGS -D_MACHINE_SYS_GETPPDP_INCLUDED"
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| 70 | fi
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| 71 | ;;
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| 72 | *aix*)
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| 73 | AC_DEFINE(BROKEN_STRNDUP, 1, [Whether strndup is broken])
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| 74 | AC_DEFINE(BROKEN_STRNLEN, 1, [Whether strnlen is broken])
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| 75 | if test "${GCC}" != "yes"; then
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| 76 | ## for funky AIX compiler using strncpy()
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| 77 | CFLAGS="$CFLAGS -D_LINUX_SOURCE_COMPAT -qmaxmem=32000"
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| 78 | fi
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| 79 | ;;
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| 80 | #
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| 81 | # VOS may need to have POSIX support and System V compatibility enabled.
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| 82 | #
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| 83 | *vos*)
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| 84 | case "$CFLAGS" in
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| 85 | *-D_POSIX_C_SOURCE*);;
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| 86 | *)
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| 87 | CFLAGS="$CFLAGS -D_POSIX_C_SOURCE=200112L"
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| 88 | AC_DEFINE(_POSIX_C_SOURCE, 200112L, [Whether to enable POSIX support])
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| 89 | ;;
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| 90 | esac
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| 91 | case "$CFLAGS" in
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| 92 | *-D_SYSV*|*-D_SVID_SOURCE*);;
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| 93 | *)
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| 94 | CFLAGS="$CFLAGS -D_SYSV"
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| 95 | AC_DEFINE(_SYSV, 1, [Whether to enable System V compatibility])
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| 96 | ;;
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| 97 | esac
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| 98 | ;;
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| 99 | esac
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| 100 |
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| 101 |
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| 102 |
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| 103 | AC_CHECK_HEADERS([standards.h])
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| 104 |
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| 105 | # Solaris needs HAVE_LONG_LONG defined
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| 106 | AC_CHECK_TYPES(long long)
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| 107 |
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| 108 | AC_CHECK_TYPE(uint_t, unsigned int)
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| 109 | AC_CHECK_TYPE(int8_t, char)
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| 110 | AC_CHECK_TYPE(uint8_t, unsigned char)
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| 111 | AC_CHECK_TYPE(int16_t, short)
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| 112 | AC_CHECK_TYPE(uint16_t, unsigned short)
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| 113 | AC_CHECK_TYPE(int32_t, long)
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| 114 | AC_CHECK_TYPE(uint32_t, unsigned long)
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| 115 | AC_CHECK_TYPE(int64_t, long long)
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| 116 | AC_CHECK_TYPE(uint64_t, unsigned long long)
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| 117 |
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| 118 | AC_CHECK_TYPE(size_t, unsigned int)
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| 119 | AC_CHECK_TYPE(ssize_t, int)
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| 120 |
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| 121 | AC_CHECK_SIZEOF(int)
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| 122 | AC_CHECK_SIZEOF(char)
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| 123 | AC_CHECK_SIZEOF(short)
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| 124 | AC_CHECK_SIZEOF(long)
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| 125 | AC_CHECK_SIZEOF(long long)
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| 126 |
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| 127 | AC_CHECK_SIZEOF(off_t)
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| 128 | AC_CHECK_SIZEOF(size_t)
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| 129 | AC_CHECK_SIZEOF(ssize_t)
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| 130 |
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| 131 | AC_CHECK_TYPE(intptr_t, unsigned long long)
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| 132 | AC_CHECK_TYPE(ptrdiff_t, unsigned long long)
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| 133 |
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| 134 | if test x"$ac_cv_type_long_long" != x"yes";then
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| 135 | AC_MSG_ERROR([LIBREPLACE needs type 'long long'])
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| 136 | fi
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| 137 | if test $ac_cv_sizeof_long_long -lt 8;then
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| 138 | AC_MSG_ERROR([LIBREPLACE needs sizeof(long long) >= 8])
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| 139 | fi
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| 140 |
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| 141 | ############################################
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| 142 | # check if the compiler can do immediate structures
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| 143 | AC_SUBST(libreplace_cv_immediate_structures)
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| 144 | AC_CACHE_CHECK([for immediate structures],libreplace_cv_immediate_structures,[
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| 145 | AC_TRY_COMPILE([
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| 146 | #include <stdio.h>
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| 147 | ],[
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| 148 | typedef struct {unsigned x;} FOOBAR;
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| 149 | #define X_FOOBAR(x) ((FOOBAR) { x })
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| 150 | #define FOO_ONE X_FOOBAR(1)
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| 151 | FOOBAR f = FOO_ONE;
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| 152 | static const struct {
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| 153 | FOOBAR y;
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| 154 | } f2[] = {
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| 155 | {FOO_ONE}
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| 156 | };
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| 157 | ],
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| 158 | libreplace_cv_immediate_structures=yes,
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| 159 | libreplace_cv_immediate_structures=no,
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| 160 | libreplace_cv_immediate_structures=cross)
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| 161 | ])
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| 162 | if test x"$libreplace_cv_immediate_structures" = x"yes"; then
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| 163 | AC_DEFINE(HAVE_IMMEDIATE_STRUCTURES,1,[Whether the compiler supports immediate structures])
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| 164 | fi
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| 165 |
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| 166 | AC__LIBREPLACE_ONLY_CC_CHECKS_END
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| 167 | ]) dnl end AC_LIBREPLACE_CC_CHECKS
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