AIX 7.1环境下Apache 2.4.X安装时mod_authn_file.so创建失败求助

Problem Context #

I'm trying to install Apache 2.4.x versions (2.4.16, 2.4.25, 2.4.29) on AIX 7.1 (7100-05-01-1731). I've successfully installed all required dependencies:

• apr 1.5.2
• apr-util 1.5.4
• pcre 8.33

I set up the 64-bit compilation environment with these variables:

export OBJECT_MODE=64
export CC="xlc_r -q64"
export lt_cv_path_NM="/usr/bin/nm -B -X64"
export AR="ar -X64"

When running make install, the process fails with an error creating mod_authn_file.so:

rm -f /home/u980868/apache/kiran/httpd-kiran/modules/mod_authn_file.so
/home/u980868/apache/kiran/httpd-2.4.25/srclib/apr/libtool --silent --mode=install install mod_authn_file.la /home/u980868/apache/kiran/httpd-kiran/modules/
find: bad status-- /home/u980868/apache/kiran/httpd-kiran/modules/mod_authn_file.so
install: File mod_authn_file.so was not found.
make: 1254-004 The error code from the last command is 2.

Troubleshooting & Solutions #

Let's walk through the most likely fixes for this AIX-specific issue:

1. Reveal Hidden Errors from libtool #

The --silent flag in the libtool command is masking the real reason mod_authn_file.so isn't being created. Re-run the install step without silent mode to get detailed logs:

cd /path/to/httpd-2.4.25/modules/authn_file
/home/u980868/apache/kiran/httpd-2.4.25/srclib/apr/libtool --mode=install install mod_authn_file.la /home/u980868/apache/kiran/httpd-kiran/modules/

This will show you exactly what's failing—whether it's missing symbols, linker flag issues, or permission problems.

2. Check Target Directory Permissions #

Make sure the user running make install has write access to the modules directory:

ls -ld /home/u980868/apache/kiran/httpd-kiran/modules/

If permissions are insufficient, fix them with:

chmod 755 /home/u980868/apache/kiran/httpd-kiran/modules/
# Or adjust ownership if needed
chown -R your_username:your_group /home/u980868/apache/kiran/httpd-kiran/

3. Reconfigure Apache with Explicit Dependency Paths #

AIX can be finicky about detecting installed libraries. Re-run configure with explicit paths to your pre-installed dependencies, and ensure shared module support is enabled:

rm -rf config.cache  # Clear old configure cache first
export OBJECT_MODE=64
export CC="xlc_r -q64"
export lt_cv_path_NM="/usr/bin/nm -B -X64"
export AR="ar -X64"

./configure \
  --prefix=/home/u980868/apache/kiran/httpd-kiran \
  --with-apr=/path/to/your/apr-1.5.2/install \
  --with-apr-util=/path/to/your/apr-util-1.5.4/install \
  --with-pcre=/path/to/your/pcre-8.33/install \
  --enable-so \
  --enable-mods-shared=all

Replace the /path/to/your/... paths with the actual directories where you installed each dependency. The --enable-so flag is critical for building shared modules like mod_authn_file.so.

4. Fix libtool's NM Flag Handling #

Sometimes the lt_cv_path_NM variable isn't properly picked up during configure. Make sure you set it before running configure (not just before make), and clear the config cache first as shown above. AIX's nm tool needs the -B -X64 flags to work with 64-bit objects, so this is a common point of failure.

5. Add AIX-Specific Linker Flags #

AIX requires specific linker flags for shared objects. Add this to your environment before running make:

export LDFLAGS="-q64 -brtl"

The -brtl flag enables run-time linking, which is often required for Apache modules to load correctly on AIX.

6. Check if the Module Was Built (and Manually Copy if Needed) #

Sometimes the module is built but not copied correctly. Look in the source module's .libs directory:

ls /path/to/httpd-2.4.25/modules/authn_file/.libs/

If mod_authn_file.so exists here, you can manually copy it to your target modules directory as a temporary fix:

cp /path/to/httpd-2.4.25/modules/authn_file/.libs/mod_authn_file.so /home/u980868/apache/kiran/httpd-kiran/modules/

内容的提问来源于stack exchange，提问作者Anurag Shetty