mjhjmtu

I am trying to upgrade apache 2.2.15 to 2.2.27. While running config.nice taken from apache2.2.15/build I am getting following error:

checking whether the C compiler works... no
configure: error: in `/home/vkuser/httpd-2.2.27/srclib/apr':
configure: error: C compiler cannot create executables

I have tried to search online but no luck. I have also tested out c compiler by running a small test.c script and it runs fine. There were few solution given online like installing 'kernel-devel' package but it did not resolve issue. How can I get this to work?

Following is the config.log generated:

 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 2.67. Invocation command line was

 $ ./configure --prefix=/opt/myapp/apache2.2 --with-mpm=worker --enable-static-support --enable-ssl=static --enable-modules=most --disable-authndbd --disable-authn-dbm --disable-dbd --enable-static-logresolve --enable-static-rotatelogs --enable-proxy=static --enable-proxyconnect=static --enable-proxy-ftp=static --enable-proxy-http=static --enable-rewrite=static --enable-so=static --with-ssl=/opt/myapp/apache2.2/openssl --host=x86_32-unknown-linux-gnu host_alias=x86_32-unknown-linux-gnu CFLAGS=-m32 LDFLAGS=-m32 --with-included-apr

 ## --------- ##
 ## Platform. ##
 ## --------- ##

 hostname = dmcpq-000
 uname -m = x86_64
 uname -r = 2.6.18-348.12.1.el5
 uname -s = Linux
 uname -v = #1 SMP Mon Jul 1 17:54:12 EDT 2013

 /usr/bin/uname -p = unknown
 /bin/uname -X = unknown

 /bin/arch = x86_64
 /usr/bin/arch -k = unknown
 /usr/convex/getsysinfo = unknown
 /usr/bin/hostinfo = unknown
 /bin/machine = unknown
 /usr/bin/oslevel = unknown
 /bin/universe = unknown

 PATH: /opt/myapp/Entrust/GetAccess/Runtime/Apache22/bin
 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:2793: checking for chosen layout
 configure:2795: result: Apache
 configure:3598: checking for working mkdir -p
 configure:3614: result: yes
 configure:3629: checking build system type
 configure:3643: result: x86_64-unknown-linux-gnu
 configure:3663: checking host system type
 configure:3676: result: x86_32-unknown-linux-gnu
 configure:3696: checking target system type
 configure:3709: result: x86_32-unknown-linux-gnu

 ## ---------------- ##
 ## Cache variables. ##
 ## ---------------- ##

 ac_cv_build=x86_64-unknown-linux-gnu
 ac_cv_env_CC_set=
 ac_cv_env_CC_value=
 ac_cv_env_CFLAGS_set=set
 ac_cv_env_CFLAGS_value=-m32
 ac_cv_env_CPPFLAGS_set=
 ac_cv_env_CPPFLAGS_value=
 ac_cv_env_CPP_set=
 ac_cv_env_CPP_value=
 ac_cv_env_LDFLAGS_set=set
 ac_cv_env_LDFLAGS_value=-m32
 ac_cv_env_LIBS_set=
 ac_cv_env_LIBS_value=
 ac_cv_env_build_alias_set=
 ac_cv_env_build_alias_value=
 ac_cv_env_host_alias_set=set
 ac_cv_env_host_alias_value=x86_32-unknown-linux-gnu
 ac_cv_env_target_alias_set=
 ac_cv_env_target_alias_value=
 ac_cv_host=x86_32-unknown-linux-gnu
 ac_cv_mkdir_p=yes
 ac_cv_target=x86_32-unknown-linux-gnu

 ## ----------------- ##
 ## Output variables. ##
 ## ----------------- ##

 APACHECTL_ULIMIT=''
 APR_BINDIR=''
 APR_CONFIG=''
 APR_INCLUDEDIR=''
 APR_VERSION=''
 APU_BINDIR=''
 APU_CONFIG=''
 APU_INCLUDEDIR=''
 APU_VERSION=''
 AP_BUILD_SRCLIB_DIRS=''
 AP_CLEAN_SRCLIB_DIRS=''
 AP_LIBS=''
 AWK=''
 BUILTIN_LIBS=''
 CC=''
 CFLAGS='-m32'
 CORE_IMPLIB=''
 CORE_IMPLIB_FILE=''
 CPP=''
 CPPFLAGS=''
 CRYPT_LIBS=''
 CXX=''
 CXXFLAGS=''
 DEFS=''
 DSO_MODULES=''
 ECHO_C=''
 ECHO_N='-n'
 ECHO_T=''
 EGREP=''
 EXEEXT=''
 EXTRA_CFLAGS=''
 EXTRA_CPPFLAGS=''
 EXTRA_CXXFLAGS=''
 EXTRA_INCLUDES=''
 EXTRA_LDFLAGS=''
 EXTRA_LIBS=''
 GREP=''
 HTTPD_LDFLAGS=''
 HTTPD_VERSION=''
 INCLUDES=''
 INSTALL=''
 INSTALL_DSO=''
 INSTALL_PROG_FLAGS=''
 LDFLAGS='-m32'
 LIBOBJS=''
 LIBS=''
 LIBTOOL=''
 LN_S=''
 LTCFLAGS=''
 LTFLAGS=''
 LTLIBOBJS=''
 LT_LDFLAGS=''
 LYNX_PATH=''
 MKDEP=''
 MKINSTALLDIRS=''
 MK_IMPLIB=''
 MODULE_CLEANDIRS=''
 MODULE_DIRS=''
 MOD_ACTIONS_LDADD=''
 MOD_ALIAS_LDADD=''
 MOD_ASIS_LDADD=''
 MOD_AUTHNZ_LDAP_LDADD=''
 MOD_AUTHN_ALIAS_LDADD=''
 MOD_AUTHN_ANON_LDADD=''
 MOD_AUTHN_DBD_LDADD=''
 MOD_AUTHN_DBM_LDADD=''
 MOD_AUTHN_DEFAULT_LDADD=''
 MOD_AUTHN_FILE_LDADD=''
 MOD_AUTHZ_DBM_LDADD=''
 MOD_AUTHZ_DEFAULT_LDADD=''
 MOD_AUTHZ_GROUPFILE_LDADD=''
 MOD_AUTHZ_HOST_LDADD=''
 MOD_AUTHZ_OWNER_LDADD=''
 MOD_AUTHZ_USER_LDADD=''
 MOD_AUTH_BASIC_LDADD=''
 MOD_AUTH_DIGEST_LDADD=''
 MOD_AUTOINDEX_LDADD=''
 MOD_BUCKETEER_LDADD=''
 MOD_CACHE_LDADD=''
 MOD_CASE_FILTER_IN_LDADD=''
 MOD_CASE_FILTER_LDADD=''
 MOD_CERN_META_LDADD=''
 MOD_CGID_LDADD=''
 MOD_CGI_LDADD=''
 MOD_CHARSET_LITE_LDADD=''
 MOD_DAV_FS_LDADD=''
 MOD_DAV_LDADD=''
 MOD_DAV_LOCK_LDADD=''
 MOD_DBD_LDADD=''
 MOD_DEFLATE_LDADD=''
 MOD_DIR_LDADD=''
 MOD_DISK_CACHE_LDADD=''
 MOD_DUMPIO_LDADD=''
 MOD_ECHO_LDADD=''
 MOD_ENV_LDADD=''
 MOD_EXAMPLE_LDADD=''
 MOD_EXPIRES_LDADD=''
 MOD_EXT_FILTER_LDADD=''
 MOD_FILE_CACHE_LDADD=''
 MOD_FILTER_LDADD=''
 MOD_HEADERS_LDADD=''
 MOD_HTTP_LDADD=''
 MOD_IDENT_LDADD=''
 MOD_IMAGEMAP_LDADD=''
 MOD_INCLUDE_LDADD=''
 MOD_INFO_LDADD=''
 MOD_ISAPI_LDADD=''
 MOD_LDAP_LDADD=''
 MOD_LOGIO_LDADD=''
 MOD_LOG_CONFIG_LDADD=''
 MOD_LOG_FORENSIC_LDADD=''
 MOD_MEM_CACHE_LDADD=''
 MOD_MIME_LDADD=''
 MOD_MIME_MAGIC_LDADD=''
 MOD_NEGOTIATION_LDADD=''
 MOD_OPTIONAL_FN_EXPORT_LDADD=''
 MOD_OPTIONAL_FN_IMPORT_LDADD=''
 MOD_OPTIONAL_HOOK_EXPORT_LDADD=''
 MOD_OPTIONAL_HOOK_IMPORT_LDADD=''
 MOD_PROXY_AJP_LDADD=''
 MOD_PROXY_BALANCER_LDADD=''
 MOD_PROXY_CONNECT_LDADD=''
 MOD_PROXY_FTP_LDADD=''
 MOD_PROXY_HTTP_LDADD=''
 MOD_PROXY_LDADD=''
 MOD_PROXY_SCGI_LDADD=''
 MOD_REQTIMEOUT_LDADD=''
 MOD_REWRITE_LDADD=''
 MOD_SETENVIF_LDADD=''
 MOD_SO_LDADD=''
 MOD_SPELING_LDADD=''
 MOD_SSL_LDADD=''
 MOD_STATUS_LDADD=''
 MOD_SUBSTITUTE_LDADD=''
 MOD_SUEXEC_LDADD=''
 MOD_UNIQUE_ID_LDADD=''
 MOD_USERDIR_LDADD=''
 MOD_USERTRACK_LDADD=''
 MOD_VERSION_LDADD=''
 MOD_VHOST_ALIAS_LDADD=''
 MPM_LIB=''
 MPM_NAME=''
 MPM_SUBDIR_NAME=''
 NONPORTABLE_SUPPORT=''
 NOTEST_CFLAGS=''
 NOTEST_CPPFLAGS=''
 NOTEST_CXXFLAGS=''
 NOTEST_LDFLAGS=''
 NOTEST_LIBS=''
 OBJEXT=''
 OS=''
 OS_DIR=''
 OS_SPECIFIC_VARS=''
 PACKAGE_BUGREPORT=''
 PACKAGE_NAME=''
 PACKAGE_STRING=''
 PACKAGE_TARNAME=''
 PACKAGE_URL=''
 PACKAGE_VERSION=''
 PATH_SEPARATOR=':'
 PCRE_CONFIG=''
 PICFLAGS=''
 PILDFLAGS=''
 PKGCONFIG=''
 PORT=''
 POST_SHARED_CMDS=''
 PRE_SHARED_CMDS=''
 RANLIB=''
 RM=''
 RSYNC=''
 SHELL='/bin/sh'
 SHLIBPATH_VAR=''
 SHLTCFLAGS=''
 SH_LDFLAGS=''
 SH_LIBS=''
 SH_LIBTOOL=''
 SSLPORT=''
 SSL_LIBS=''
 UTIL_LDFLAGS=''
 ab_LTFLAGS=''
 abs_srcdir=''
 ac_ct_CC=''
 ap_make_delimiter=''
 ap_make_include=''
 bindir='$exec_prefix/bin'
 build='x86_64-unknown-linux-gnu'
 build_alias=''
 build_cpu='x86_64'
 build_os='linux-gnu'
 build_vendor='unknown'
 cgidir='$datadir/cgi-bin'
 checkgid_LTFLAGS=''
 datadir='$prefix'
 datarootdir='$prefix/share'
 docdir='$datarootdir/doc/$PACKAGE'
 dvidir='$docdir'
 errordir='$datadir/error'
 exec_prefix='$prefix'
 exp_bindir='/opt/myapp/apache2.2/bin'
 exp_cgidir='/opt/myapp/apache2.2/cgi-bin'
 exp_datadir='/opt/myapp/apache2.2'
 exp_errordir='/opt/myapp/apache2.2/error'
 exp_exec_prefix='/opt/myapp/apache2.2'
 exp_htdocsdir='/opt/myapp/apache2.2/htdocs'
 exp_iconsdir='/opt/myapp/apache2.2/icons'
 exp_includedir='/opt/myapp/apache2.2/include'
 exp_installbuilddir='/opt/myapp/apache2.2/build'
 exp_libdir='/opt/myapp/apache2.2/lib'
 exp_libexecdir='/opt/myapp/apache2.2/modules'
 exp_localstatedir='/opt/myapp/apache2.2'
 exp_logfiledir='/opt/myapp/apache2.2/logs'
 exp_mandir='/opt/myapp/apache2.2/man'
 exp_manualdir='/opt/myapp/apache2.2/manual'
 exp_proxycachedir='/opt/myapp/apache2.2/proxy'
 exp_runtimedir='/opt/myapp/apache2.2/logs'
 exp_sbindir='/opt/myapp/apache2.2/bin'
 exp_sysconfdir='/opt/myapp/apache2.2/conf'
 host='x86_32-unknown-linux-gnu'
 host_alias='x86_32-unknown-linux-gnu'
 host_cpu='x86_32'
 host_os='linux-gnu'
 host_vendor='unknown'
 htcacheclean_LTFLAGS=''
 htdbm_LTFLAGS=''
 htdigest_LTFLAGS=''
 htdocsdir='$datadir/htdocs'
 htmldir='$docdir'
 htpasswd_LTFLAGS=''
 httxt2dbm_LTFLAGS=''
 iconsdir='$datadir/icons'
 includedir='$prefix/include'
 infodir='$datarootdir/info'
 installbuilddir='$datadir/build'
 libdir='$exec_prefix/lib'
 libexecdir='$exec_prefix/modules'
 localedir='$datarootdir/locale'
 localstatedir='$prefix'
 logfiledir='$localstatedir/logs'
 logresolve_LTFLAGS=''
 mandir='$prefix/man'
 manualdir='$datadir/manual'
 nonssl_listen_stmt_1=''
 nonssl_listen_stmt_2=''
 oldincludedir='/usr/include'
 other_targets=''
 pdfdir='$docdir'
 perlbin=''
 prefix='/opt/myapp/apache2.2'
 progname=''
 program_transform_name='s,x,x,'
 proxycachedir='$localstatedir/proxy'
 psdir='$docdir'
 rel_bindir='bin'
 rel_cgidir='cgi-bin'
 rel_datadir=''
 rel_errordir='error'
 rel_exec_prefix=''
 rel_htdocsdir='htdocs'
 rel_iconsdir='icons'
 rel_includedir='include'
 rel_installbuilddir='build'
 rel_libdir='lib'
 rel_libexecdir='modules'
 rel_localstatedir=''
 rel_logfiledir='logs'
 rel_mandir='man'
 rel_manualdir='manual'
 rel_proxycachedir='proxy'
 rel_runtimedir='logs'
 rel_sbindir='bin'
 rel_sysconfdir='conf'
 rotatelogs_LTFLAGS=''
 runtimedir='$localstatedir/logs'
 sbindir='$exec_prefix/bin'
 shared_build=''
 sharedstatedir='$prefix/com'
 sysconfdir='$prefix/conf'
 target='x86_32-unknown-linux-gnu'
 target_alias=''
 target_cpu='x86_32'
 target_os='linux-gnu'
 target_vendor='unknown'

 configure: exit 1

From the output you've given, you are trying to compile a 32-bit build of apache on a 64 bit system. This is from the intput to configure here:

--host=x86_32-unknown-linux-gnu host_alias=x86_32-unknown-linux-gnu CFLAGS=-m32 LDFLAGS=-m32

Also see the output lines confirming this:

configure:3629: checking build system type
configure:3643: result: x86_64-unknown-linux-gnu
configure:3663: checking host system type
configure:3676: result: x86_32-unknown-linux-gnu
configure:3696: checking target system type
configure:3709: result: x86_32-unknown-linux-gnu

Here it is using a 64 bit build system but a 32 bit host/target. Further down we see:

ac_cv_env_CFLAGS_set=set
ac_cv_env_CFLAGS_value=-m32

This flag tells gcc to produce 32 bit objects. Your error that the C compiler cannot produce executable is likely caused by not having a 32 bit toolchain present.

Testing your ability to compile 32 bit objects

You can test this by compiling a small C example with the -m32 flag.

// Minimal C example
#include <stdio.h>
int main()

 printf("This worksn");
 return 0;

Compiling:

gcc -m32 -o m32test m32test.c

If this command fails, then you have a problem with your compiler being able to build 32 bit objects. The error messages emitted from the compiler may be helpful in remedying this.

Remedies

1. Build for a 64 bit target (by removing the configure options forcing a 32 bit build), or


2. Install a 32 bit compiler toolchain

CC=''

Tells me that no compiler is set. Do you have gcc installed?

Try:

which gcc

On Debian you probably need to install a build environment with:

apt-get install build-essential

Or, even better:

apt-get build-dep your-package-name

There can be lots of reasons for it. What happens to me most often is that I trash my CFLAGS either on the command line or by having one set in my environment. Happens to me a couple times a year and I usually have to Google it because I never remember the fix. "Oh, that again"

Just try
echo $CFLAGS
Most of the time there shouldn't be anything in there. If there is it may be wrong.

In another case I fed a line to a configure script that worked under 32 bit Linux but I had switched to 64 bit since and some of the -march -mfpu stuff was now wrong. My point is, it's a bad error message, it means there was some error compiling, not that the compiler doesn't work.

I got this error when I thought I'd installed the C compiler but it wasn't actually installed.

I had an executable script to load the C modules which I'd executed as follows:

./load_modules.sh

But running a script only loads modules for that script's duration. To have the script keep the modules loaded, you have to run:

source load_modules.sh

which executes the lines as if they're being typed into the terminal.