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1 AC_PREREQ([2.60])
2 AC_INIT([jansson], [2.14], [https://github.com/akheron/jansson/issues])
3
4 AC_CONFIG_AUX_DIR([.])
5 AM_INIT_AUTOMAKE([1.10 foreign])
6
7 AC_CONFIG_SRCDIR([src/value.c])
8 AC_CONFIG_HEADERS([jansson_private_config.h])
9
10 # Checks for programs.
11 AC_PROG_CC
12 AC_PROG_CXX
13 AC_PROG_LIBTOOL
14 AM_CONDITIONAL([GCC], [test x$GCC = xyes])
15
16 # Checks for libraries.
17
18 # Checks for header files.
19 AC_CHECK_HEADERS([endian.h fcntl.h locale.h sched.h unistd.h sys/param.h sys/stat.h sys/time.h sys/types.h])
20
21 # Checks for typedefs, structures, and compiler characteristics.
22 AC_TYPE_INT32_T
23 AC_TYPE_UINT32_T
24 AC_TYPE_UINT16_T
25 AC_TYPE_UINT8_T
26 AC_TYPE_LONG_LONG_INT
27
28 AC_C_INLINE
29 case $ac_cv_c_inline in
30 yes) json_inline=inline;;
31 no) json_inline=;;
32 *) json_inline=$ac_cv_c_inline;;
33 esac
34 AC_SUBST([json_inline])
35
36 # Checks for library functions.
37 AC_CHECK_FUNCS([close getpid gettimeofday localeconv open read sched_yield strtoll])
38
39 AC_MSG_CHECKING([for gcc __sync builtins])
40 have_sync_builtins=no
41 AC_TRY_LINK(
42 [], [unsigned long val; __sync_bool_compare_and_swap(&val, 0, 1); __sync_add_and_fetch(&val, 1); __sync_sub_and_fetch(&val, 1);],
43 [have_sync_builtins=yes],
44 )
45 if test "x$have_sync_builtins" = "xyes"; then
46 AC_DEFINE([HAVE_SYNC_BUILTINS], [1],
47 [Define to 1 if gcc's __sync builtins are available])
48 json_have_sync_builtins=1
49 else
50 json_have_sync_builtins=0
51 fi
52 AC_SUBST([json_have_sync_builtins])
53 AC_MSG_RESULT([$have_sync_builtins])
54
55 AC_MSG_CHECKING([for gcc __atomic builtins])
56 have_atomic_builtins=no
57 AC_TRY_LINK(
58 [], [char l; unsigned long v; __atomic_test_and_set(&l, __ATOMIC_RELAXED); __atomic_store_n(&v, 1, __ATOMIC_RELEASE); __atomic_load_n(&v, __ATOMIC_ACQUIRE); __atomic_add_fetch(&v, 1, __ATOMIC_ACQUIRE); __atomic_sub_fetch(&v, 1, __ATOMIC_RELEASE);],
59 [have_atomic_builtins=yes],
60 )
61 if test "x$have_atomic_builtins" = "xyes"; then
62 AC_DEFINE([HAVE_ATOMIC_BUILTINS], [1],
63 [Define to 1 if gcc's __atomic builtins are available])
64 json_have_atomic_builtins=1
65 else
66 json_have_atomic_builtins=0
67 fi
68 AC_SUBST([json_have_atomic_builtins])
69 AC_MSG_RESULT([$have_atomic_builtins])
70
71 case "$ac_cv_type_long_long_int$ac_cv_func_strtoll" in
72 yesyes) json_have_long_long=1;;
73 *) json_have_long_long=0;;
74 esac
75 AC_SUBST([json_have_long_long])
76
77 case "$ac_cv_header_locale_h$ac_cv_func_localeconv" in
78 yesyes) json_have_localeconv=1;;
79 *) json_have_localeconv=0;;
80 esac
81 AC_SUBST([json_have_localeconv])
82
83 # Features
84 AC_ARG_ENABLE([urandom],
85 [AS_HELP_STRING([--disable-urandom],
86 [Don't use /dev/urandom to seed the hash function])],
87 [use_urandom=$enableval], [use_urandom=yes])
88
89 if test "x$use_urandom" = xyes; then
90 AC_DEFINE([USE_URANDOM], [1],
91 [Define to 1 if /dev/urandom should be used for seeding the hash function])
92 fi
93
94 AC_ARG_ENABLE([windows-cryptoapi],
95 [AS_HELP_STRING([--disable-windows-cryptoapi],
96 [Don't use CryptGenRandom to seed the hash function])],
97 [use_windows_cryptoapi=$enableval], [use_windows_cryptoapi=yes])
98
99 if test "x$use_windows_cryptoapi" = xyes; then
100 AC_DEFINE([USE_WINDOWS_CRYPTOAPI], [1],
101 [Define to 1 if CryptGenRandom should be used for seeding the hash function])
102 fi
103
104 AC_ARG_ENABLE([initial-hashtable-order],
105 [AS_HELP_STRING([--enable-initial-hashtable-order=VAL],
106 [Number of buckets new object hashtables contain is 2 raised to this power. The default is 3, so empty hashtables contain 2^3 = 8 buckets.])],
107 [initial_hashtable_order=$enableval], [initial_hashtable_order=3])
108 AC_DEFINE_UNQUOTED([INITIAL_HASHTABLE_ORDER], [$initial_hashtable_order],
109 [Number of buckets new object hashtables contain is 2 raised to this power. E.g. 3 -> 2^3 = 8.])
110
111 AC_ARG_ENABLE([Bsymbolic],
112 [AS_HELP_STRING([--disable-Bsymbolic],
113 [Avoid linking with -Bsymbolic-function])],
114 [], [with_Bsymbolic=check])
115
116 if test "x$with_Bsymbolic" != "xno" ; then
117 AC_MSG_CHECKING([for -Bsymbolic-functions linker flag])
118 saved_LDFLAGS="${LDFLAGS}"
119 LDFLAGS=-Wl,-Bsymbolic-functions
120 AC_TRY_LINK(
121 [], [int main (void) { return 0; }],
122 [AC_MSG_RESULT([yes])
123 have_Bsymbolic=yes],
124 [AC_MSG_RESULT([no])
125 have_Bsymbolic=no]
126 )
127 LDFLAGS="${saved_LDFLAGS}"
128
129 if test "x$with_Bsymbolic" = "xcheck" ; then
130 with_Bsymbolic=$have_Bsymbolic;
131 fi
132 if test "x$with_Bsymbolic:x$have_Bsymbolic" = "xyes:xno" ; then
133 AC_MSG_ERROR([linker support is required for -Bsymbolic])
134 fi
135 fi
136
137 AS_IF([test "x$with_Bsymbolic" = "xyes"], [JSON_BSYMBOLIC_LDFLAGS=-Wl[,]-Bsymbolic-functions])
138 AC_SUBST(JSON_BSYMBOLIC_LDFLAGS)
139
140 # Enable symbol versioning on GNU libc
141 JSON_SYMVER_LDFLAGS=
142 AC_CHECK_DECL([__GLIBC__], [JSON_SYMVER_LDFLAGS=-Wl,--default-symver])
143 AC_SUBST([JSON_SYMVER_LDFLAGS])
144
145 AC_ARG_ENABLE([ossfuzzers],
146 [AS_HELP_STRING([--enable-ossfuzzers],
147 [Whether to generate the fuzzers for OSS-Fuzz])],
148 [have_ossfuzzers=yes], [have_ossfuzzers=no])
149 AM_CONDITIONAL([USE_OSSFUZZERS], [test "x$have_ossfuzzers" = "xyes"])
150
151
152 AC_SUBST([LIB_FUZZING_ENGINE])
153 AM_CONDITIONAL([USE_OSSFUZZ_FLAG], [test "x$LIB_FUZZING_ENGINE" = "x-fsanitize=fuzzer"])
154 AM_CONDITIONAL([USE_OSSFUZZ_STATIC], [test -f "$LIB_FUZZING_ENGINE"])
155
156
157 if test x$GCC = xyes; then
158 AC_MSG_CHECKING(for -Wno-format-truncation)
159 wnoformat_truncation="-Wno-format-truncation"
160 AS_IF([${CC} -Wno-format-truncation -Werror -S -o /dev/null -xc /dev/null > /dev/null 2>&1],
161 [AC_MSG_RESULT(yes)],
162 [AC_MSG_RESULT(no)
163 wnoformat_truncation=""])
164
165 AM_CFLAGS="-Wall -Wextra -Wdeclaration-after-statement -Wshadow ${wnoformat_truncation}"
166 fi
167 AC_SUBST([AM_CFLAGS])
168
169 AC_CONFIG_FILES([
170 jansson.pc
171 Makefile
172 doc/Makefile
173 src/Makefile
174 src/jansson_config.h
175 test/Makefile
176 test/bin/Makefile
177 test/ossfuzz/Makefile
178 test/suites/Makefile
179 test/suites/api/Makefile
180 ])
181 AC_OUTPUT