1
2AC_DEFUN_ONCE(AC__LIBREPLACE_ONLY_CC_CHECKS_START,
3[
4echo "LIBREPLACE_CC_CHECKS: START"
5])
6
7AC_DEFUN_ONCE(AC__LIBREPLACE_ONLY_CC_CHECKS_END,
8[
9echo "LIBREPLACE_CC_CHECKS: END"
10])
11
12dnl
13dnl
14dnl AC_LIBREPLACE_CC_CHECKS
15dnl
16dnl Note: we need to use m4_define instead of AC_DEFUN because
17dnl       of the ordering of tests
18dnl       
19dnl 
20m4_define(AC_LIBREPLACE_CC_CHECKS,
21[
22AC__LIBREPLACE_ONLY_CC_CHECKS_START
23
24dnl stop the C89 attempt by autoconf - if autoconf detects -Ae it will enable it
25dnl which conflicts with C99 on HPUX
26ac_cv_prog_cc_Ae=no
27
28savedCFLAGS=$CFLAGS
29AC_PROG_CC
30CFLAGS=$savedCFLAGS
31
32dnl don't try for C99 if we are using gcc, as otherwise we 
33dnl lose immediate structure constants
34if test x"$GCC" != x"yes" ; then
35AC_PROG_CC_C99
36fi
37
38if test x"$GCC" = x"yes" ; then
39	AC_MSG_CHECKING([for version of gcc])
40	GCC_VERSION=`$CC -dumpversion`
41	AC_MSG_RESULT(${GCC_VERSION})
42fi
43AC_USE_SYSTEM_EXTENSIONS
44AC_C_BIGENDIAN
45AC_C_INLINE
46LIBREPLACE_C99_STRUCT_INIT([],[AC_MSG_WARN([c99 structure initializer are not supported])])
47
48AC_PROG_INSTALL
49
50AC_ISC_POSIX
51AC_EXTENSION_FLAG(_XOPEN_SOURCE_EXTENDED)
52AC_EXTENSION_FLAG(_OSF_SOURCE)
53
54AC_SYS_LARGEFILE
55
56dnl Add #include for broken IRIX header files
57case "$host_os" in
58	*irix6*) AC_ADD_INCLUDE(<standards.h>)
59		;;
60	*hpux*)
61		# mmap on HPUX is completely broken...
62		AC_DEFINE(MMAP_BLACKLIST, 1, [Whether MMAP is broken])
63		if test "`uname -r`" = "B.11.11"; then
64			AC_MSG_WARN([Enabling HPUX 11.11 header bug workaround])
65			CFLAGS="$CFLAGS -D_LARGEFILE64_SUPPORT -D__LP64__ -DO_LARGEFILE=04000"
66		fi
67		if test "`uname -r`" = "B.11.23"; then
68			AC_MSG_WARN([Enabling HPUX 11.23 machine/sys/getppdp.h bug workaround])
69			CFLAGS="$CFLAGS -D_MACHINE_SYS_GETPPDP_INCLUDED"
70		fi
71		;;
72	*aix*)
73		AC_DEFINE(BROKEN_STRNDUP, 1, [Whether strndup is broken])
74		AC_DEFINE(BROKEN_STRNLEN, 1, [Whether strnlen is broken])
75		if test "${GCC}" != "yes"; then
76			## for funky AIX compiler using strncpy()
77			CFLAGS="$CFLAGS -D_LINUX_SOURCE_COMPAT -qmaxmem=32000"
78		fi
79		;;
80	#
81	# VOS may need to have POSIX support and System V compatibility enabled.
82	#
83	*vos*)
84		case "$CFLAGS" in
85			*-D_POSIX_C_SOURCE*);;
86			*)
87				CFLAGS="$CFLAGS -D_POSIX_C_SOURCE=200112L"
88				AC_DEFINE(_POSIX_C_SOURCE, 200112L, [Whether to enable POSIX support])
89				;;
90		esac
91		case "$CFLAGS" in
92			*-D_SYSV*|*-D_SVID_SOURCE*);;
93			*)
94				CFLAGS="$CFLAGS -D_SYSV"
95				AC_DEFINE(_SYSV, 1, [Whether to enable System V compatibility])
96				;;
97		esac
98		;;
99esac
100
101
102
103AC_CHECK_HEADERS([standards.h])
104
105# Solaris needs HAVE_LONG_LONG defined
106AC_CHECK_TYPES(long long)
107
108AC_CHECK_TYPE(uint_t, unsigned int)
109AC_CHECK_TYPE(int8_t, char)
110AC_CHECK_TYPE(uint8_t, unsigned char)
111AC_CHECK_TYPE(int16_t, short)
112AC_CHECK_TYPE(uint16_t, unsigned short)
113AC_CHECK_TYPE(int32_t, long)
114AC_CHECK_TYPE(uint32_t, unsigned long)
115AC_CHECK_TYPE(int64_t, long long)
116AC_CHECK_TYPE(uint64_t, unsigned long long)
117
118AC_CHECK_TYPE(size_t, unsigned int)
119AC_CHECK_TYPE(ssize_t, int)
120
121AC_CHECK_SIZEOF(int)
122AC_CHECK_SIZEOF(char)
123AC_CHECK_SIZEOF(short)
124AC_CHECK_SIZEOF(long)
125AC_CHECK_SIZEOF(long long)
126
127AC_CHECK_SIZEOF(off_t)
128AC_CHECK_SIZEOF(size_t)
129AC_CHECK_SIZEOF(ssize_t)
130
131AC_CHECK_TYPE(intptr_t, unsigned long long)
132AC_CHECK_TYPE(ptrdiff_t, unsigned long long)
133
134if test x"$ac_cv_type_long_long" != x"yes";then
135	AC_MSG_ERROR([LIBREPLACE needs type 'long long'])
136fi
137if test $ac_cv_sizeof_long_long -lt 8;then
138	AC_MSG_ERROR([LIBREPLACE needs sizeof(long long) >= 8])
139fi
140
141############################################
142# check if the compiler can do immediate structures
143AC_SUBST(libreplace_cv_immediate_structures)
144AC_CACHE_CHECK([for immediate structures],libreplace_cv_immediate_structures,[
145	AC_TRY_COMPILE([
146		#include <stdio.h>
147	],[
148		typedef struct {unsigned x;} FOOBAR;
149		#define X_FOOBAR(x) ((FOOBAR) { x })
150		#define FOO_ONE X_FOOBAR(1)
151		FOOBAR f = FOO_ONE;   
152		static const struct {
153			FOOBAR y; 
154		} f2[] = {
155			{FOO_ONE}
156		};   
157	],
158	libreplace_cv_immediate_structures=yes,
159	libreplace_cv_immediate_structures=no,
160	libreplace_cv_immediate_structures=cross)
161])
162if test x"$libreplace_cv_immediate_structures" = x"yes"; then
163	AC_DEFINE(HAVE_IMMEDIATE_STRUCTURES,1,[Whether the compiler supports immediate structures])
164fi
165
166AC__LIBREPLACE_ONLY_CC_CHECKS_END
167]) dnl end AC_LIBREPLACE_CC_CHECKS
168