File libgda-no-pg_config.patch of Package libgda

Index: libgda-5.2.8/m4/postgresql.m4
===================================================================
--- libgda-5.2.8.orig/m4/postgresql.m4
+++ libgda-5.2.8/m4/postgresql.m4
@@ -1,40 +1,25 @@
 dnl -*- mode: autoconf -*-
-dnl Copyright 2010 Vivien Malerba
+dnl Copyright 2019 Dominique Leuenberger
 dnl
 dnl SYNOPSIS
 dnl
 dnl   POSTGRES_CHECK([libdirname])
 dnl
-dnl   [libdirname]: defaults to "lib". Can be overridden by the --with-postgres-libdir-name option
+dnl   [libdirname]: IGNORED: I was simply too lazy to rewrite all of it
 dnl
 dnl DESCRIPTION
 dnl
-dnl   This macro tries to find the PostgreSQL libraries and header files
+dnl   This macro tries to find the PostgreSQL using pkg-config libpq
 dnl
 dnl   It defines two options:
-dnl   --with-postgres=yes/no/<directory>
-dnl   --with-postgres-libdir-name=<dir. name>
+dnl   --with-postgres=yes/no
 dnl
-dnl   If the 1st option is "yes" then the macro tries to use pg_config to locate
-dnl   the PostgreSQL package, and if it fails, it tries in several well known directories
+dnl   If the 1st option is "yes" then the macro tries to use pgk-config to locate
+dnl   the PostgreSQL package
 dnl
 dnl   If the 1st option is "no" then the macro does not attempt at locating the
 dnl   postgresql package
 dnl
-dnl   If the 1st option is a directory name, then the macro tries to locate the postgresql package
-dnl   in the specified directory.
-dnl
-dnl   If the macro has to try to locate the postgresql package in one or more directories, it will
-dnl   try to locate the header files in $dir/include and the library files in $dir/lib, unless
-dnl   the second option is used to specify a directory name to be used instead of "lib" (for
-dnl   example lib64).
-dnl
-dnl USED VARIABLES
-dnl
-dnl   $linklibext: contains the library suffix (like ".so"). If not specified ".so" is used.
-dnl   $platform_win32: contains "yes" on Windows platforms. If not specified, assumes "no"
-dnl
-dnl
 dnl DEFINED VARIABLES
 dnl
 dnl   This macro always calls:
@@ -61,122 +46,14 @@ m4_define([_POSTGRES_CHECK_INTERNAL],
     AC_BEFORE([AM_PROG_LIBTOOL],[$0])dnl setup libtool first
     AC_BEFORE([LT_INIT],[$0])dnl setup libtool first
 
-    pg_loclibdir=$1
-    if test "x$pg_loclibdir" = x
-    then
-        if test "x$platform_win32" = xyes
-	then
-	    pg_loclibdir=bin
-	else
-	    pg_loclibdir=lib
-	fi
-    fi
-
-    # determine if PostgreSQL should be searched for
-    # and use pg_config if the "yes" option is used
-    postgres_found=no
-    try_postgres=true
-    pkgpostgres=no
-    POSTGRES_LIBS=""
-    postgres_test_dir=""
-    AC_ARG_WITH(postgres,
-              AS_HELP_STRING([--with-postgres[=@<:@yes/no/<directory>@:>@]],
-                             [Locate PostgreSQL files]),[
-			     if test $withval = no
-			     then
-			         try_postgres=false
-			     elif test $withval != yes
-			     then
-			         postgres_test_dir=$withval
-			     fi])
-    AC_ARG_WITH(postgres-libdir-name,
-              AS_HELP_STRING([--with-postgres-libdir-name[=@<:@<dir. name>@:>@]],
-                             [Locate PostgreSQL library file, related to the PostgreSQL prefix specified from --with-postgres]),
-			     [pg_loclibdir=$withval])
+    AC_ARG_WITH([postgres], AS_HELP_STRING([--with-postgres], [Build with the GTK+ interface]))
 
     # try with the default available pg_config
-    if test $try_postgres = true -a "x$postgres_test_dir" = x
-    then
-        AC_PATH_PROGS(PG_CONFIG, pg_config)
-	if test "x$PG_CONFIG" != x
-	then
-	    pkgpostgres=yes
-	    POSTGRES_CFLAGS="-I`$PG_CONFIG --includedir`"
-	    POSTGRES_LIBS="-L`$PG_CONFIG --libdir` -lpq"
-	else
-	    postgres_test_dir="/usr /usr/local /opt/gnome"
-	fi
-    fi
-
-    # try to locate pg_config in places in $postgres_test_dir
-    if test $try_postgres = true
-    then
-	if test $pkgpostgres = no
-	then
-	    if test "x$linklibext" = x
-	    then
-	        postgres_libext=".so"
-	    else
-	        postgres_libext=".dll"
-	    fi
-	    if test $platform_win32 = yes
-	    then
-	        for d in $postgres_test_dir
-	        do
-	            AC_MSG_CHECKING([checking for PostgreSQL files in $d])
-		    echo "looking for $d/include/libpq-fe.h -a -f $d/$pg_loclibdir/libpq$postgres_libext"
-		    if test -a $d/include/libpq-fe.h -a -f $d/$pg_loclibdir/libpq$postgres_libext
-		    then
-			save_CFLAGS="$CFLAGS"
-	                CFLAGS="$CFLAGS -I$d/include"
-  	                save_LIBS="$LIBS"
-	                LIBS="$LIBS -L$d/$pg_loclibdir -lpq"
-   	                AC_LINK_IFELSE([AC_LANG_SOURCE([
-#include <libpq-fe.h>
-int main() {
-    printf("%p", PQconnectdb);
-    return 0;
-}
-])],
-	                             postgres_found=yes)
-	                CFLAGS="$save_CFLAGS"
-  	                LIBS="$save_LIBS"
-			if test "x$postgres_found" = xyes
-			then
-		            AC_MSG_RESULT([found])
-			    POSTGRES_CFLAGS=-I$d/include
-			    POSTGRES_LIBS="-L$d/$pg_loclibdir -lpq"
-			    break
-			fi
-			AC_MSG_RESULT([files found but are not useable])
-		    else
-		        AC_MSG_RESULT([not found])
-		    fi
-	        done
-	    else
-	        for d in $postgres_test_dir
-	        do
-	            AC_MSG_NOTICE([checking for pg_config tool in $d])
-                    AC_PATH_PROGS(PG_CONFIG, pg_config,,[$d/bin])
-		    if test "x$PG_CONFIG" != x
-		    then
-	    	        pkgpostgres=yes
-	    	        POSTGRES_CFLAGS="-I`$PG_CONFIG --includedir`"
-	    	        POSTGRES_LIBS="-L`$PG_CONFIG --libdir` -lpq"
-	    	        break;
-		    fi
-	        done
-	    fi
-        fi
-	if test "x$POSTGRES_LIBS" = x
-	then
-	    AC_MSG_NOTICE([POSTGRESQL backend not used])
-	else
-    	    postgres_found=yes
-	fi
-    fi
+    AS_IF([test "x$with_postgres" = "xyes"], [
+        PKG_CHECK_MODULES([POSTGRES], [libpq], postgres_found=true, postgres_found=false)
+    ])
 
-    AM_CONDITIONAL(POSTGRES,[test "$postgres_found" = "yes"])
+    AM_CONDITIONAL(POSTGRES,[test "$postgres_found" = "true"])
     AC_SUBST(POSTGRES_LIBS)
     AC_SUBST(POSTGRES_CFLAGS)
 ])