ax_lib_postgresql.m4 (8891B)
1 # =========================================================================== 2 # https://www.gnu.org/software/autoconf-archive/ax_lib_postgresql.html 3 # =========================================================================== 4 # 5 # SYNOPSIS 6 # 7 # AX_LIB_POSTGRESQL([MINIMUM-VERSION],[ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND]) 8 # 9 # DESCRIPTION 10 # 11 # This macro provides tests of availability of PostgreSQL 'libpq' library 12 # of particular version or newer. 13 # 14 # AX_LIB_POSTGRESQL macro takes only one argument which is optional. If 15 # there is no required version passed, then macro does not run version 16 # test. 17 # 18 # The --with-postgresql option takes one of three possible values: 19 # 20 # no - do not check for PostgreSQL client library 21 # 22 # yes - do check for PostgreSQL library in standard locations (pg_config 23 # should be in the PATH) 24 # 25 # path - complete path to pg_config utility, use this option if pg_config 26 # can't be found in the PATH (You could set also PG_CONFIG variable) 27 # 28 # This macro calls: 29 # 30 # AC_SUBST(POSTGRESQL_CPPFLAGS) 31 # AC_SUBST(POSTGRESQL_LDFLAGS) 32 # AC_SUBST(POSTGRESQL_LIBS) 33 # AC_SUBST(POSTGRESQL_VERSION) 34 # 35 # And sets: 36 # 37 # HAVE_POSTGRESQL 38 # 39 # It execute if found ACTION-IF-FOUND (empty by default) and 40 # ACTION-IF-NOT-FOUND (AC_MSG_FAILURE by default) if not found. 41 # 42 # LICENSE 43 # 44 # Copyright (c) 2008 Mateusz Loskot <mateusz@loskot.net> 45 # Copyright (c) 2014 Sree Harsha Totakura <sreeharsha@totakura.in> 46 # Copyright (c) 2018 Bastien Roucaries <rouca@debian.org> 47 # 48 # Copying and distribution of this file, with or without modification, are 49 # permitted in any medium without royalty provided the copyright notice 50 # and this notice are preserved. This file is offered as-is, without any 51 # warranty. 52 53 #serial 22 54 55 AC_DEFUN([_AX_LIB_POSTGRESQL_OLD],[ 56 found_postgresql="no" 57 _AX_LIB_POSTGRESQL_OLD_fail="no" 58 while true; do 59 AC_CACHE_CHECK([for the pg_config program], [ac_cv_path_PG_CONFIG], 60 [AC_PATH_PROGS_FEATURE_CHECK([PG_CONFIG], [pg_config], 61 [[ac_cv_path_PG_CONFIG="";$ac_path_PG_CONFIG --includedir > /dev/null \ 62 && ac_cv_path_PG_CONFIG=$ac_path_PG_CONFIG ac_path_PG_CONFIG_found=:]], 63 [ac_cv_path_PG_CONFIG=""])]) 64 PG_CONFIG=$ac_cv_path_PG_CONFIG 65 AS_IF([test "X$PG_CONFIG" = "X"],[break]) 66 67 AC_CACHE_CHECK([for the PostgreSQL libraries CPPFLAGS],[ac_cv_POSTGRESQL_CPPFLAGS], 68 [ac_cv_POSTGRESQL_CPPFLAGS="-I`$PG_CONFIG --includedir`" || _AX_LIB_POSTGRESQL_OLD_fail=yes]) 69 AS_IF([test "X$_AX_LIB_POSTGRESQL_OLD_fail" = "Xyes"],[break]) 70 POSTGRESQL_CPPFLAGS="$ac_cv_POSTGRESQL_CPPFLAGS" 71 72 AC_CACHE_CHECK([for the PostgreSQL libraries LDFLAGS],[ac_cv_POSTGRESQL_LDFLAGS], 73 [ac_cv_POSTGRESQL_LDFLAGS="-L`$PG_CONFIG --libdir`" || _AX_LIB_POSTGRESQL_OLD_fail=yes]) 74 AS_IF([test "X$_AX_LIB_POSTGRESQL_OLD_fail" = "Xyes"],[break]) 75 POSTGRESQL_LDFLAGS="$ac_cv_POSTGRESQL_LDFLAGS" 76 77 AC_CACHE_CHECK([for the PostgreSQL libraries LIBS],[ac_cv_POSTGRESQL_LIBS], 78 [ac_cv_POSTGRESQL_LIBS="-lpq"]) 79 POSTGRESQL_LIBS="$ac_cv_POSTGRESQL_LIBS" 80 81 AC_CACHE_CHECK([for the PostgreSQL version],[ac_cv_POSTGRESQL_VERSION], 82 [ 83 ac_cv_POSTGRESQL_VERSION=`$PG_CONFIG --version | sed "s/^PostgreSQL[[[:space:]]][[[:space:]]]*\([[0-9.]][[0-9.]]*\).*/\1/"` \ 84 || _AX_LIB_POSTGRESQL_OLD_fail=yes 85 ]) 86 AS_IF([test "X$_AX_LIB_POSTGRESQL_OLD_fail" = "Xyes"],[break]) 87 POSTGRESQL_VERSION="$ac_cv_POSTGRESQL_VERSION" 88 89 90 dnl 91 dnl Check if required version of PostgreSQL is available 92 dnl 93 AS_IF([test X"$postgresql_version_req" != "X"],[ 94 AC_MSG_CHECKING([if PostgreSQL version $POSTGRESQL_VERSION is >= $postgresql_version_req]) 95 AX_COMPARE_VERSION([$POSTGRESQL_VERSION],[ge],[$postgresql_version_req], 96 [found_postgresql_req_version=yes],[found_postgresql_req_version=no]) 97 AC_MSG_RESULT([$found_postgresql_req_version]) 98 ]) 99 AS_IF([test "Xfound_postgresql_req_version" = "Xno"],[break]) 100 101 found_postgresql="yes" 102 break 103 done 104 ]) 105 106 AC_DEFUN([_AX_LIB_POSTGRESQL_PKG_CONFIG], 107 [ 108 AC_REQUIRE([PKG_PROG_PKG_CONFIG]) 109 found_postgresql=no 110 111 while true; do 112 PKG_PROG_PKG_CONFIG 113 AS_IF([test X$PKG_CONFIG = X],[break]) 114 115 _AX_LIB_POSTGRESQL_PKG_CONFIG_fail=no; 116 AS_IF([test "X$postgresql_version_req" = "X"], 117 [PKG_CHECK_EXISTS([libpq],[found_postgresql_pkg_config=yes],[found_postgresql=no])], 118 [PKG_CHECK_EXISTS([libpq >= "$postgresql_version_req"], 119 [found_postgresql=yes],[found_postgresql=no])]) 120 AS_IF([test "X$found_postgresql" = "no"],[break]) 121 122 AC_CACHE_CHECK([for the PostgreSQL libraries CPPFLAGS],[ac_cv_POSTGRESQL_CPPFLAGS], 123 [ac_cv_POSTGRESQL_CPPFLAGS="`$PKG_CONFIG libpq --cflags-only-I`" || _AX_LIB_POSTGRESQL_PKG_CONFIG_fail=yes]) 124 AS_IF([test "X$_AX_LIB_POSTGRESQL_PKG_CONFIG_fail" = "Xyes"],[break]) 125 POSTGRESQL_CPPFLAGS="$ac_cv_POSTGRESQL_CPPFLAGS" 126 127 128 AC_CACHE_CHECK([for the PostgreSQL libraries LDFLAGS],[ac_cv_POSTGRESQL_LDFLAGS], 129 [ac_cv_POSTGRESQL_LDFLAGS="`$PKG_CONFIG libpq --libs-only-L --libs-only-other`" || _AX_LIB_POSTGRESQL_PKG_CONFIG_fail=yes]) 130 AS_IF([test "X$_AX_LIB_POSTGRESQL_PKG_CONFIG_fail" = "Xyes"],[break]) 131 POSTGRESQL_LDFLAGS="$ac_cv_POSTGRESQL_LDFLAGS" 132 133 134 AC_CACHE_CHECK([for the PostgreSQL libraries LIBS],[ac_cv_POSTGRESQL_LIBS], 135 [ac_cv_POSTGRESQL_LIBS="`$PKG_CONFIG libpq --libs-only-l`" || _AX_LIB_POSTGRESQL_PKG_CONFIG_fail=ye]) 136 AS_IF([test "X$_AX_LIB_POSTGRESQL_PKG_CONFIG_fail" = "Xyes"],[break]) 137 POSTGRESQL_LIBS="$ac_cv_POSTGRESQL_LIBS" 138 139 dnl already checked by exist but need to be recovered 140 AC_CACHE_CHECK([for the PostgreSQL version],[ac_cv_POSTGRESQL_VERSION], 141 [ac_cv_POSTGRESQL_VERSION="`$PKG_CONFIG libpq --modversion`" || _AX_LIB_POSTGRESQL_PKG_CONFIG_fail=yes]) 142 AS_IF([test "X$_AX_LIB_POSTGRESQL_PKG_CONFIG_fail" = "Xyes"],[break]) 143 POSTGRESQL_VERSION="$ac_cv_POSTGRESQL_VERSION" 144 145 found_postgresql=yes 146 break; 147 done 148 149 ]) 150 151 152 153 AC_DEFUN([AX_LIB_POSTGRESQL], 154 [ 155 AC_ARG_WITH([postgresql], 156 AS_HELP_STRING([--with-postgresql=@<:@ARG@:>@], 157 [use PostgreSQL library @<:@default=yes@:>@, optionally specify path to pg_config] 158 ), 159 [ 160 AS_CASE([$withval], 161 [[[nN]][[oO]]],[want_postgresql="no"], 162 [[[yY]][[eE]][[sS]]],[want_postgresql="yes"], 163 [ 164 want_postgresql="yes" 165 PG_CONFIG="$withval" 166 ]) 167 ], 168 [want_postgresql="yes"] 169 ) 170 171 AC_ARG_VAR([POSTGRESQL_CPPFLAGS],[cpp flags for PostgreSQL overriding detected flags]) 172 AC_ARG_VAR([POSTGRESQL_LIBFLAGS],[libs for PostgreSQL overriding detected flags]) 173 AC_ARG_VAR([POSTGRESQL_LDFLAGS],[linker flags for PostgreSQL overriding detected flags]) 174 175 # populate cache 176 AS_IF([test "X$POSTGRESQL_CPPFLAGS" != X],[ac_cv_POSTGRESQL_CPPFLAGS="$POSTGRESQL_CPPFLAGS"]) 177 AS_IF([test "X$POSTGRESQL_LDFLAGS" != X],[ac_cv_POSTGRESQL_LDFLAGS="$POSTGRESQL_LDFLAGS"]) 178 AS_IF([test "X$POSTGRESQL_LIBS" != X],[ac_cv_POSTGRESQL_LIBS="$POSTGRESQL_LIBS"]) 179 180 postgresql_version_req=ifelse([$1], [], [], [$1]) 181 found_postgresql="no" 182 183 POSTGRESQL_VERSION="" 184 185 dnl 186 dnl Check PostgreSQL libraries (libpq) 187 dnl 188 AS_IF([test X"$want_postgresql" = "Xyes"],[ 189 _AX_LIB_POSTGRESQL_PKG_CONFIG 190 191 192 AS_IF([test X"$found_postgresql" = "Xno"], 193 [_AX_LIB_POSTGRESQL_OLD]) 194 195 AS_IF([test X"$found_postgresql" = Xyes],[ 196 _AX_LIB_POSTGRESQL_OLD_CPPFLAGS="$CPPFLAGS" 197 CPPFLAGS="$CPPFLAGS $POSTGRESQL_CPPFLAGS" 198 _AX_LIB_POSTGRESQL_OLD_LDFLAGS="$LDFLAGS" 199 LDFLAGS="$LDFLAGS $POSTGRESQL_LDFLAGS" 200 _AX_LIB_POSTGRESQL_OLD_LIBS="$LIBS" 201 LIBS="$LIBS $POSTGRESQL_LIBS" 202 while true; do 203 dnl try to compile 204 AC_CHECK_HEADER([libpq-fe.h],[],[found_postgresql=no]) 205 AS_IF([test "X$found_postgresql" = "Xno"],[break]) 206 dnl try now to link 207 AC_CACHE_CHECK([for the PostgreSQL library linking is working],[ac_cv_postgresql_found], 208 [ 209 AC_LINK_IFELSE([ 210 AC_LANG_PROGRAM( 211 [ 212 #include <libpq-fe.h> 213 ], 214 [[ 215 char conninfo[]="dbname = postgres"; 216 PGconn *conn; 217 conn = PQconnectdb(conninfo); 218 ]] 219 ) 220 ],[ac_cv_postgresql_found=yes], 221 [ac_cv_postgresql_found=no]) 222 ]) 223 found_postgresql="$ac_cv_postgresql_found" 224 AS_IF([test "X$found_postgresql" = "Xno"],[break]) 225 break 226 done 227 CPPFLAGS="$_AX_LIB_POSTGRESQL_OLD_CPPFLAGS" 228 LDFLAGS="$_AX_LIB_POSTGRESQL_OLD_LDFLAGS" 229 LIBS="$_AX_LIB_POSTGRESQL_OLD_LIBS" 230 ]) 231 232 233 AS_IF([test "x$found_postgresql" = "xyes"],[ 234 AC_DEFINE([HAVE_POSTGRESQL], [1], 235 [Define to 1 if PostgreSQL libraries are available])]) 236 ]) 237 238 AC_SUBST([POSTGRESQL_VERSION]) 239 AC_SUBST([POSTGRESQL_CPPFLAGS]) 240 AC_SUBST([POSTGRESQL_LDFLAGS]) 241 AC_SUBST([POSTGRESQL_LIBS]) 242 243 AS_IF([test "x$found_postgresql" = "xyes"], 244 [ifelse([$2], , :, [$2])], 245 [ifelse([$3], , AS_IF([test X"$want_postgresql" = "Xyes"],[AC_MSG_ERROR([Library requirements (PostgreSQL) not met.])],[:]), [$3])]) 246 247 ])