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/home/apache1/source/apache-2.4.48/httpd-2.4.48/srclib/apr/libtool --silent --mode=compile gcc -std=gnu99   -g -O2      -DSOLARIS2=10 -D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT -D_LARGEFILE64_SOURCE   \
      -I. -I/home/apache1/source/apache-2.4.48/httpd-2.4.48/os/unix -I/home/apache1/source/apache-2.4.48/httpd-2.4.48/include -I/home/apache1/source/apache-2.4.48/httpd-2.4.48/srclib/apr/include -I/home/apache1/source/apache-2.4.48/httpd-2.4.48/srclib/apr-util/include -I/home/apache1/httpd8090/include -I/home/apache1/source/apache-2.4.48/httpd-2.4.48/modules/aaa -I/home/apache1/source/apache-2.4.48/httpd-2.4.48/modules/cache -I/home/apache1/source/apache-2.4.48/httpd-2.4.48/modules/core -I/home/apache1/source/apache-2.4.48/httpd-2.4.48/modules/database -I/home/apache1/source/apache-2.4.48/httpd-2.4.48/modules/filters -I/home/apache1/source/apache-2.4.48/httpd-2.4.48/modules/ldap -I/home/apache1/source/apache-2.4.48/httpd-2.4.48/modules/loggers -I/home/apache1/source/apache-2.4.48/httpd-2.4.48/modules/lua -I/home/apache1/source/apache-2.4.48/httpd-2.4.48/modules/proxy -I/home/apache1/source/apache-2.4.48/httpd-2.4.48/modules/http2 -I/home/apache1/source/apache-2.4.48/httpd-2.4.48/modules/session -I/home/apache1/source/apache-2.4.48/httpd-2.4.48/modules/ssl -I/home/apache1/source/apache-2.4.48/httpd-2.4.48/modules/test -I/home/apache1/source/apache-2.4.48/httpd-2.4.48/server -I/home/apache1/source/apache-2.4.48/httpd-2.4.48/modules/md -I/home/apache1/source/apache-2.4.48/httpd-2.4.48/modules/arch/unix -I/home/apache1/source/apache-2.4.48/httpd-2.4.48/modules/dav/main -I/home/apache1/source/apache-2.4.48/httpd-2.4.48/modules/generators -I/home/apache1/source/apache-2.4.48/httpd-2.4.48/modules/mappers  -prefer-non-pic -static -c ab.c && touch ab.lo
/home/apache1/source/apache-2.4.48/httpd-2.4.48/srclib/apr/libtool --silent --mode=link gcc -std=gnu99  -g -O2    \
         -o ab  ab.lo       /home/apache1/source/apache-2.4.48/httpd-2.4.48/srclib/apr-util/libaprutil-1.la -lexpat /home/apache1/source/apache-2.4.48/httpd-2.4.48/srclib/apr/libapr-1.la -luuid -lsendfile -lrt -lsocket -lnsl -lpthread -lm -lssl -lcrypto -luuid -lsendfile -lrt -lsocket -lnsl -lpthread
Undefined                       first referenced
 symbol                             in file
TLSv1_2_client_method               ab.o
TLSv1_1_client_method               ab.o
BIO_set_callback                    ab.o
EVP_PKEY_id                         ab.o
BIO_set_callback_arg                ab.o
BIO_get_callback_arg                ab.o
SSL_CTX_set_info_callback           ab.o
ld: fatal: symbol referencing errors. No output written to .libs/ab
collect2: ld returned 1 exit status
gmake[2]: *** [ab] Error 1
gmake[2]: Leaving directory `/home/apache1/source/apache-2.4.48/httpd-2.4.48/support'
gmake[1]: *** [all-recursive] Error 1
gmake[1]: Leaving directory `/home/apache1/source/apache-2.4.48/httpd-2.4.48/support'
gmake: *** [all-recursive] Error 1
chin1.zdevweb3:~/source/apache-2.4.48/httpd-2.4.48> df -h .
Filesystem             size   used  avail capacity  Mounted on