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 Topic: Errors while compiling Apache 2.4.1 openssl 1.0.1 on Linux |
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shishir
Joined: 07 Mar 2012
Posts: 7
Location: India, Bangalore
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 Posted: Tue 24 Apr '12 11:54 Post subject: Errors while compiling Apache 2.4.1 openssl 1.0.1 on Linux |
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Hi,
I am trying to compile Apache 2.4.1 with openssl 1.0.1 on Linux 2.6.32-71.el6.x86_64.
Following is the last block of the 'make' command of apache.
make[4]: Entering directory `/root/shishir/httpd-2.4.1/modules/ssl'
/root/shishir/httpd-2.4.1/srclib/apr/libtool --silent --mode=link gcc -std=gnu99 -g -O2 -pthread -o mod_ssl.la -rpath /usr/pw/apache/modules -module -avoid-version mod_ssl.lo ssl_engine_config.lo ssl_engine_dh.lo ssl_eng
ine_init.lo ssl_engine_io.lo ssl_engine_kernel.lo ssl_engine_log.lo ssl_engine_mutex.lo ssl_engine_pphrase.lo ssl_engine_rand.lo ssl_engine_vars.lo ssl_scache.lo ssl_util_stapling.lo ssl_util.lo ssl_util_ssl.lo ssl_engine_ocsp.lo
ssl_util_ocsp.lo -L/usr/pw/apache/openssl/lib -lssl -lcrypto -lrt -lcrypt -lpthread -export-symbols-regex ssl_module
/usr/bin/ld: /usr/pw/apache/openssl/lib/libssl.a(s3_srvr.o): relocation R_X86_64_32 against `.rodata' can not be used when making a shared object; recompile with -fPIC
/usr/pw/apache/openssl/lib/libssl.a: could not read symbols: Bad value
collect2: ld returned 1 exit status
make[4]: *** [mod_ssl.la] Error 1
make[4]: Leaving directory `/root/shishir/httpd-2.4.1/modules/ssl'
Please note, make test for openssl came successful.
Please suggest what can be wrong while reading libssl.a?
Thanks,
Shishir |
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tdonovan
Moderator
Joined: 17 Dec 2005
Posts: 611
Location: Milford, MA, USA
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| Posted: Tue 24 Apr '12 15:19 Post subject: |
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The root problem seems to be with your compile of OpenSSL-1.0.1, not Apache.
Per the error message "recompile with -fPIC ", you should add the switch -fPIC to your ./config (or your ./Configure) command when you build OpenSSL. You may also want to add no-gost to this command too.
I use these commands to build OpenSSL on X64 Linux: | Code: | ./config --prefix=${destination_dir} -fPIC no-gost no-shared no-zlib
make
make install |
Position Independent Code is necessary for a module like mod_ssl which may get placed anywhere in memory at runtime. It is not necessary for the standalone OpenSSL test program, which is why make test worked OK without -fPIC.
FYI - The OpenSSL code for the 1970's-era Soviet GOST cipher can cause problems when compiling with -fPIC on X64 platforms. Since GOST is not used by modern browsers, omitting this cipher should not cause you any problems with mod_ssl.
I hope this helps,
-tom- |
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