Needs to include stdio.h in nginx/auto/feature for this to work
kzcabstone opened this issue · 5 comments
nginx src version: 1.20.2
When I was trying to compile the nginx connector module, nginx configure was complaining about libmodsecurity not found. Command line I was using:
./configure --with-http_ssl_module --with-threads --with-compat --add-dynamic-module=/usr/local/opt/ModSecurity-nginx/
I checked nginx/objs/autoconf.err and this is in it
----------------------------------------
checking for ModSecurity library in "/usr/local/opt/ModSecurity/src/.libs/" and "/usr/local/opt/ModSecurity/headers/" (specified by the MODSECURITY_LIB and MODSECURITY_INC env)
objs/autotest.c:6:5: error: implicitly declaring library function 'printf' with type 'int (const char *, ...)' [-Werror,-Wimplicit-function-declaration]
printf("hello");;
^
objs/autotest.c:6:5: note: include the header <stdio.h> or explicitly provide a declaration for 'printf'
1 error generated.
----------
#include <sys/types.h>
#include <unistd.h>
#include <modsecurity/modsecurity.h>
int main(void) {
printf("hello");;
return 0;
}
So I think you need to either set $NGX_INCLUDE_UNISTD_H or not use printf
see #275.
Found similar issue since some compilation flags changed for Fedora.
With the following standard build command it fails:
./configure --add-dynamic-module=/builddir/build/BUILD/ModSecurity-nginx-1.0.3
(...)
configuring additional dynamic modules
adding module in /builddir/build/BUILD/ModSecurity-nginx-1.0.3
checking for ModSecurity library ... not found
checking for ModSecurity library in /usr/local/modsecurity ... not found
./configure: error: ngx_http_modsecurity_module requires the ModSecurity library.
With manually setting MODSECURITY_LIB and MODSECURITY_INC also fails
export MODSECURITY_LIB=/usr/lib64/
export MODSECURITY_INC=/usr/include/modsecurity
./configure --add-dynamic-module=/builddir/build/BUILD/ModSecurity-nginx-1.0.3
(...)
configuring additional dynamic modules
adding module in /builddir/build/BUILD/ModSecurity-nginx-1.0.3
checking for ModSecurity library in "/usr/lib64/" and "/usr/include/modsecurity" (specified by the MODSECURITY_LIB and MODSECURITY_INC env) ... not found
./configure: error: ngx_http_modsecurity_module requires the ModSecurity library and MODSECURITY_LIB is defined as "/usr/lib64/" and MODSECURITY_INC (path for modsecurity.h) "/usr/include/modsecurity", but we cannot find ModSecurity there.
Applying patch in #275 works just fine in both cases:
./configure --add-dynamic-module=/builddir/build/BUILD/ModSecurity-nginx-1.0.3
(...)
adding module in /builddir/build/BUILD/ModSecurity-nginx-1.0.3
checking for ModSecurity library in "/usr/lib64/" and "/usr/include/modsecurity" (specified by the MODSECURITY_LIB and MODSECURITY_INC env) ... found
+ ngx_http_modsecurity_module was configured
Hi, I know this is kinda old but I just confirmed the issue lately on Fedora 40.
I can also confirm that applying patch in #275 fixes the issue.
Hi, I know this is kinda old but I just confirmed the issue lately on Fedora 40.
Just in case you're building yoursefl, the package is part of Fedora as nginx-mod-modsecurity.
Hi, I know this is kinda old but I just confirmed the issue lately on Fedora 40.
Just in case you're building yoursefl, the package is part of Fedora as
nginx-mod-modsecurity.
Thanks for the reply !
I kinda need to build it manually as I'm applying other custom patches as well + I'm trying to have one script that builds it on multi-distributions 😁