It is not immediately evident why the postGIS configure gives the error about requires postgresSQL. With the earlier error one could see exactly what postGIS configure was testing. This one just aborts with a non-zero exit code. [root@zoa-project postgis-1.3.5]# more config.log This file contains any messages produced by compilers while running configure, to aid debugging if configure makes a mistake. It was created by configure, which was generated by GNU Autoconf 2.60. Invocation command line was $ ./configure ## --------- ## ## Platform. ## ## --------- ## hostname = zoa-project uname -m = i686 uname -r = 2.6.18-128.1.6.el5 uname -s = Linux uname -v = #1 SMP Tue Mar 24 12:10:27 EDT 2009 /usr/bin/uname -p = unknown /bin/uname -X = unknown /bin/arch = i686 /usr/bin/arch -k = unknown /usr/convex/getsysinfo = unknown /usr/bin/hostinfo = unknown /bin/machine = unknown /usr/bin/oslevel = unknown /bin/universe = unknown PATH: /usr/kerberos/sbin PATH: /usr/kerberos/bin PATH: /usr/local/sbin PATH: /usr/local/bin PATH: /sbin PATH: /bin PATH: /usr/sbin PATH: /usr/bin PATH: /root/bin ## ----------- ## ## Core tests. ## ## ----------- ## configure:1793: checking for gcc configure:1809: found /usr/bin/gcc configure:1820: result: gcc configure:2058: checking for C compiler version configure:2065: gcc --version >&5 gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-44) Copyright (C) 2006 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. configure:2068: $? = 0 configure:2075: gcc -v >&5 Using built-in specs. Target: i386-redhat-linux Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/u sr/share/info --enable-shared --enable-threads=posix --enable-checking=release - -with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable- libgcj-multifile --enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable -java-awt=gtk --disable-dssi --enable-plugin --with-java-home=/usr/lib/jvm/java- 1.4.2-gcj-1.4.2.0/jre --with-cpu=generic --host=i386-redhat-linux Thread model: posix gcc version 4.1.2 20080704 (Red Hat 4.1.2-44) configure:2078: $? = 0 configure:2085: gcc -V >&5 gcc: '-V' option must have argument configure:2088: $? = 1 configure:2111: checking for C compiler default output file name configure:2138: gcc conftest.c >&5 configure:2141: $? = 0 configure:2187: result: a.out configure:2192: checking whether the C compiler works configure:2202: ./a.out configure:2205: $? = 0 configure:2222: result: yes configure:2229: checking whether we are cross compiling configure:2231: result: no configure:2234: checking for suffix of executables configure:2241: gcc -o conftest conftest.c >&5 configure:2244: $? = 0 configure:2268: result: configure:2274: checking for suffix of object files configure:2300: gcc -c conftest.c >&5 configure:2303: $? = 0 configure:2326: result: o configure:2330: checking whether we are using the GNU C compiler configure:2359: gcc -c conftest.c >&5 configure:2365: $? = 0 configure:2372: test -z "$ac_c_werror_flag" || test ! -s conftest.err configure:2375: $? = 0 configure:2382: test -s conftest.o configure:2385: $? = 0 configure:2399: result: yes configure:2404: checking whether gcc accepts -g configure:2434: gcc -c -g conftest.c >&5 configure:2440: $? = 0 configure:2447: test -z "$ac_c_werror_flag" || test ! -s conftest.err configure:2450: $? = 0 configure:2457: test -s conftest.o configure:2460: $? = 0 configure:2590: result: yes configure:2607: checking for gcc option to accept ISO C89 configure:2681: gcc -c -g -O2 conftest.c >&5 configure:2687: $? = 0 configure:2694: test -z "$ac_c_werror_flag" || test ! -s conftest.err configure:2697: $? = 0 configure:2704: test -s conftest.o configure:2707: $? = 0 configure:2727: result: none needed configure:2803: checking for g++ configure:2833: result: no configure:2803: checking for c++ configure:2833: result: no configure:2803: checking for gpp configure:2833: result: no configure:2803: checking for aCC configure:2833: result: no configure:2803: checking for CC configure:2833: result: no configure:2803: checking for cxx configure:2833: result: no configure:2803: checking for cc++ configure:2833: result: no configure:2803: checking for cl.exe configure:2833: result: no configure:2803: checking for FCC configure:2833: result: no configure:2803: checking for KCC configure:2833: result: no configure:2803: checking for RCC configure:2833: result: no configure:2803: checking for xlC_r configure:2833: result: no configure:2803: checking for xlC configure:2833: result: no configure:2861: checking for C++ compiler version configure:2868: g++ --version >&5 ./configure: line 2869: g++: command not found configure:2871: $? = 127 configure:2878: g++ -v >&5 ./configure: line 2879: g++: command not found configure:2881: $? = 127 configure:2888: g++ -V >&5 ./configure: line 2889: g++: command not found configure:2891: $? = 127 configure:2894: checking whether we are using the GNU C++ compiler configure:2923: g++ -c conftest.cpp >&5 ./configure: line 2924: g++: command not found configure:2929: $? = 127 configure: failed program was: | /* confdefs.h. */ | #define PACKAGE_NAME "" | #define PACKAGE_TARNAME "" | #define PACKAGE_VERSION "" | #define PACKAGE_STRING "" | #define PACKAGE_BUGREPORT "" | /* end confdefs.h. */ | | int | main () | { | #ifndef __GNUC__ | choke me | #endif | | ; | return 0; | } configure:2963: result: no configure:2968: checking whether g++ accepts -g configure:2998: g++ -c -g conftest.cpp >&5 ./configure: line 2999: g++: command not found configure:3004: $? = 127 configure: failed program was: | /* confdefs.h. */ | #define PACKAGE_NAME "" | #define PACKAGE_TARNAME "" | #define PACKAGE_VERSION "" | #define PACKAGE_STRING "" | #define PACKAGE_BUGREPORT "" | /* end confdefs.h. */ | | int | main () | { | | ; | return 0; | } configure:3053: g++ -c conftest.cpp >&5 ./configure: line 3054: g++: command not found configure:3059: $? = 127 configure: failed program was: | /* confdefs.h. */ | #define PACKAGE_NAME "" | #define PACKAGE_TARNAME "" | #define PACKAGE_VERSION "" | #define PACKAGE_STRING "" | #define PACKAGE_BUGREPORT "" | /* end confdefs.h. */ | | int | main () | { | | ; | return 0; | } configure:3109: g++ -c -g conftest.cpp >&5 ./configure: line 3110: g++: command not found configure:3115: $? = 127 configure: failed program was: | /* confdefs.h. */ | #define PACKAGE_NAME "" | #define PACKAGE_TARNAME "" | #define PACKAGE_VERSION "" | #define PACKAGE_STRING "" | #define PACKAGE_BUGREPORT "" | /* end confdefs.h. */ | | int | main () | { | | ; | return 0; | } configure:3154: result: no configure:3177: checking whether ln -s works configure:3181: result: yes configure:3205: checking for iconv_open in -liconv configure:3240: gcc -o conftest -g -O2 conftest.c -liconv >&5 /usr/bin/ld: cannot find -liconv collect2: ld returned 1 exit status configure:3246: $? = 1 configure: failed program was: | /* confdefs.h. */ | #define PACKAGE_NAME "" | #define PACKAGE_TARNAME "" | #define PACKAGE_VERSION "" | #define PACKAGE_STRING "" | #define PACKAGE_BUGREPORT "" | /* end confdefs.h. */ | | /* Override any GCC internal prototype to avoid an error. | Use char because int might match the return type of a GCC | builtin and then its argument prototype would still apply. */ | #ifdef __cplusplus | extern "C" | #endif | char iconv_open (); | int | main () | { | return iconv_open (); | ; | return 0; | } configure:3280: result: no configure:3287: checking for libiconv_open in -liconv configure:3322: gcc -o conftest -g -O2 conftest.c -liconv >&5 /usr/bin/ld: cannot find -liconv collect2: ld returned 1 exit status configure:3328: $? = 1 configure: failed program was: | /* confdefs.h. */ | #define PACKAGE_NAME "" | #define PACKAGE_TARNAME "" | #define PACKAGE_VERSION "" | #define PACKAGE_STRING "" | #define PACKAGE_BUGREPORT "" | /* end confdefs.h. */ | | /* Override any GCC internal prototype to avoid an error. | Use char because int might match the return type of a GCC | builtin and then its argument prototype would still apply. */ | #ifdef __cplusplus | extern "C" | #endif | char libiconv_open (); | int | main () | { | return libiconv_open (); | ; | return 0; | } configure:3362: result: no configure:3369: checking for iconv_open in -lc configure:3405: gcc -o conftest -g -O2 conftest.c -lc >&5 configure:3411: $? = 0 configure:3418: test -z "$ac_c_werror_flag" || test ! -s conftest.err configure:3421: $? = 0 configure:3428: test -s conftest configure:3431: $? = 0 configure:3445: result: yes configure:3468: checking how to run the C preprocessor configure:3508: gcc -E conftest.c configure:3514: $? = 0 configure:3552: gcc -E conftest.c conftest.c:8:28: error: ac_nonexistent.h: No such file or directory configure:3558: $? = 1 configure: failed program was: | /* confdefs.h. */ | #define PACKAGE_NAME "" | #define PACKAGE_TARNAME "" | #define PACKAGE_VERSION "" | #define PACKAGE_STRING "" | #define PACKAGE_BUGREPORT "" | /* end confdefs.h. */ | #include configure:3598: result: gcc -E configure:3627: gcc -E conftest.c configure:3633: $? = 0 configure:3671: gcc -E conftest.c conftest.c:8:28: error: ac_nonexistent.h: No such file or directory configure:3677: $? = 1 configure: failed program was: | /* confdefs.h. */ | #define PACKAGE_NAME "" | #define PACKAGE_TARNAME "" | #define PACKAGE_VERSION "" | #define PACKAGE_STRING "" | #define PACKAGE_BUGREPORT "" | /* end confdefs.h. */ | #include configure:3722: checking for grep that handles long lines and -e configure:3796: result: /bin/grep configure:3801: checking for egrep configure:3879: result: /bin/grep -E configure:3884: checking for ANSI C header files configure:3914: gcc -c -g -O2 conftest.c >&5 configure:3920: $? = 0 configure:3927: test -z "$ac_c_werror_flag" || test ! -s conftest.err configure:3930: $? = 0 configure:3937: test -s conftest.o configure:3940: $? = 0 configure:4036: gcc -o conftest -g -O2 conftest.c >&5 configure:4039: $? = 0 configure:4045: ./conftest configure:4048: $? = 0 configure:4065: result: yes configure:4089: checking for sys/types.h configure:4110: gcc -c -g -O2 conftest.c >&5 configure:4116: $? = 0 configure:4123: test -z "$ac_c_werror_flag" || test ! -s conftest.err configure:4126: $? = 0 configure:4133: test -s conftest.o configure:4136: $? = 0 configure:4149: result: yes configure:4089: checking for sys/stat.h configure:4110: gcc -c -g -O2 conftest.c >&5 configure:4116: $? = 0 configure:4123: test -z "$ac_c_werror_flag" || test ! -s conftest.err configure:4126: $? = 0 configure:4133: test -s conftest.o configure:4136: $? = 0 configure:4149: result: yes configure:4089: checking for stdlib.h configure:4110: gcc -c -g -O2 conftest.c >&5 configure:4116: $? = 0 configure:4123: test -z "$ac_c_werror_flag" || test ! -s conftest.err configure:4126: $? = 0 configure:4133: test -s conftest.o configure:4136: $? = 0 configure:4149: result: yes configure:4089: checking for string.h configure:4110: gcc -c -g -O2 conftest.c >&5 configure:4116: $? = 0 configure:4123: test -z "$ac_c_werror_flag" || test ! -s conftest.err configure:4126: $? = 0 configure:4133: test -s conftest.o configure:4136: $? = 0 configure:4149: result: yes configure:4089: checking for memory.h configure:4110: gcc -c -g -O2 conftest.c >&5 configure:4116: $? = 0 configure:4123: test -z "$ac_c_werror_flag" || test ! -s conftest.err configure:4126: $? = 0 configure:4133: test -s conftest.o configure:4136: $? = 0 configure:4149: result: yes configure:4089: checking for strings.h configure:4110: gcc -c -g -O2 conftest.c >&5 configure:4116: $? = 0 configure:4123: test -z "$ac_c_werror_flag" || test ! -s conftest.err configure:4126: $? = 0 configure:4133: test -s conftest.o configure:4136: $? = 0 configure:4149: result: yes configure:4089: checking for inttypes.h configure:4110: gcc -c -g -O2 conftest.c >&5 configure:4116: $? = 0 configure:4123: test -z "$ac_c_werror_flag" || test ! -s conftest.err configure:4126: $? = 0 configure:4133: test -s conftest.o configure:4136: $? = 0 configure:4149: result: yes configure:4089: checking for stdint.h configure:4110: gcc -c -g -O2 conftest.c >&5 configure:4116: $? = 0 configure:4123: test -z "$ac_c_werror_flag" || test ! -s conftest.err configure:4126: $? = 0 configure:4133: test -s conftest.o configure:4136: $? = 0 configure:4149: result: yes configure:4089: checking for unistd.h configure:4110: gcc -c -g -O2 conftest.c >&5 configure:4116: $? = 0 configure:4123: test -z "$ac_c_werror_flag" || test ! -s conftest.err configure:4126: $? = 0 configure:4133: test -s conftest.o configure:4136: $? = 0 configure:4149: result: yes configure:4176: checking iconv.h usability configure:4193: gcc -c -g -O2 conftest.c >&5 configure:4199: $? = 0 configure:4206: test -z "$ac_c_werror_flag" || test ! -s conftest.err configure:4209: $? = 0 configure:4216: test -s conftest.o configure:4219: $? = 0 configure:4230: result: yes configure:4234: checking iconv.h presence configure:4249: gcc -E conftest.c configure:4255: $? = 0 configure:4276: result: yes configure:4304: checking for iconv.h configure:4312: result: yes configure:4365: checking build system type configure:4383: result: i686-pc-linux-gnu configure:4405: checking host system type configure:4420: result: i686-pc-linux-gnu configure:4462: checking for pg_config configure:4495: result: no configure:4502: error: PostgreSQL is required by PostGIS ## ---------------- ## ## Cache variables. ## ## ---------------- ## ac_cv_build=i686-pc-linux-gnu ac_cv_c_compiler_gnu=yes ac_cv_cxx_compiler_gnu=no ac_cv_env_CCC_set= ac_cv_env_CCC_value= ac_cv_env_CC_set= ac_cv_env_CC_value= ac_cv_env_CFLAGS_set= ac_cv_env_CFLAGS_value= ac_cv_env_CPPFLAGS_set= ac_cv_env_CPPFLAGS_value= ac_cv_env_CPP_set= ac_cv_env_CPP_value= ac_cv_env_CXXFLAGS_set= ac_cv_env_CXXFLAGS_value= ac_cv_env_CXX_set= ac_cv_env_CXX_value= ac_cv_env_LDFLAGS_set= ac_cv_env_LDFLAGS_value= ac_cv_env_YACC_set= ac_cv_env_YACC_value= ac_cv_env_YFLAGS_set= ac_cv_env_YFLAGS_value= ac_cv_env_build_alias_set= ac_cv_env_build_alias_value= ac_cv_env_host_alias_set= ac_cv_env_host_alias_value= ac_cv_env_target_alias_set= ac_cv_env_target_alias_value= ac_cv_header_iconv_h=yes ac_cv_header_inttypes_h=yes ac_cv_header_memory_h=yes ac_cv_header_stdc=yes ac_cv_header_stdint_h=yes ac_cv_header_stdlib_h=yes ac_cv_header_string_h=yes ac_cv_header_strings_h=yes ac_cv_header_sys_stat_h=yes ac_cv_header_sys_types_h=yes ac_cv_header_unistd_h=yes ac_cv_host=i686-pc-linux-gnu ac_cv_lib_c_iconv_open=yes ac_cv_lib_iconv_iconv_open=no ac_cv_lib_iconv_libiconv_open=no ac_cv_objext=o ac_cv_path_EGREP='/bin/grep -E' ac_cv_path_GREP=/bin/grep ac_cv_prog_CPP='gcc -E' ac_cv_prog_ac_ct_CC=gcc ac_cv_prog_cc_c89= ac_cv_prog_cc_g=yes ac_cv_prog_cxx_g=no ## ----------------- ## ## Output variables. ## ## ----------------- ## CC='gcc' CFLAGS='-g -O2' CPP='gcc -E' CPPFLAGS='' CXX='g++' CXXFLAGS='' DB2PDF='' DEFS='' DLFLAGS='' DLLTOOL='' DLLWRAP='' DLSUFFIX='' DOC_RULE='' ECHO_C='' ECHO_N='-n' ECHO_T='' EGREP='/bin/grep -E' ELF_SYS='' EXE='' EXEEXT='' FLEX='' GEOSCONFIG='' GEOS_DIR='' GEOS_LDFLAGS='' GEOS_VERNUM='' GREP='/bin/grep' HOST_OS='' ICONV_LDFLAGS='' INSTALL='' JTSCONFIG='' JTS_INCLUDES='' JTS_LIBDIR='' JW='' LDFLAGS='' LIBOBJS='' LIBS='' LN_S='ln -s' LPATH='' LTLIBOBJS='' OBJEXT='o' PACKAGE_BUGREPORT='' PACKAGE_NAME='' PACKAGE_STRING='' PACKAGE_TARNAME='' PACKAGE_VERSION='' PATH_SEPARATOR=':' PDFXMLTEX='' PERL='' PGBEINCLUDES='' PGBELIBS='' PGBIN='' PGCONFIG='' PGFEINCLUDES='' PGFELIBS='' PGTEMPLATE='' PORTNAME='' PROJ='' PROJ_DIR='' PROJ_LIBDIR='' PWDREGRESS='' SHELL='/bin/sh' USE_GEOS='' USE_ICONV='1' USE_JTS='' USE_PROJ='' XSLBASE='' XSLTPROC='' YACC='' YFLAGS='' ac_ct_CC='gcc' ac_ct_CXX='' bindir='${exec_prefix}/bin' build='i686-pc-linux-gnu' build_alias='' build_cpu='i686' build_os='linux-gnu' build_vendor='pc' datadir='${datarootdir}' datarootdir='${prefix}/share' docdir='${datarootdir}/doc/${PACKAGE}' dvidir='${docdir}' exec_prefix='NONE' host='i686-pc-linux-gnu' host_alias='' host_cpu='i686' host_os='linux-gnu' host_vendor='pc' htmldir='${docdir}' includedir='${prefix}/include' infodir='${datarootdir}/info' libdir='${exec_prefix}/lib' libexecdir='${exec_prefix}/libexec' localedir='${datarootdir}/locale' localstatedir='${prefix}/var' mandir='${datarootdir}/man' oldincludedir='/usr/include' pdfdir='${docdir}' prefix='NONE' program_transform_name='s,x,x,' psdir='${docdir}' sbindir='${exec_prefix}/sbin' sharedstatedir='${prefix}/com' sysconfdir='${prefix}/etc' target_alias='' ## ----------- ## ## confdefs.h. ## ## ----------- ## #define PACKAGE_NAME "" #define PACKAGE_TARNAME "" #define PACKAGE_VERSION "" #define PACKAGE_STRING "" #define PACKAGE_BUGREPORT "" #define STDC_HEADERS 1 #define HAVE_SYS_TYPES_H 1 #define HAVE_SYS_STAT_H 1 #define HAVE_STDLIB_H 1 #define HAVE_STRING_H 1 #define HAVE_MEMORY_H 1 #define HAVE_STRINGS_H 1 #define HAVE_INTTYPES_H 1 #define HAVE_STDINT_H 1 #define HAVE_UNISTD_H 1 #define HAVE_ICONV_H 1 configure: exit 1 [root@zoa-project postgis-1.3.5]#