RE: Static Linked on Linux and Win32

[David Barrett]

Ah, excellent -- thanks.  I should have read the Win32 build 
instructions more closely.  Thanks!

-david
On Mon, 27 Sep 2004 1:19am, Dror Shilo wrote:
On win32 to link statically you have to add the flag APR_DECLARE_STATIC
I send you this sample
the apr is installed at
c:\Ericom++\apr
Dror Shilo
Ericom Software
-----Original Message-----
From: David Barrett [mailto:[EMAIL PROTECTED]
Sent: Sunday, September 26, 2004 9:22 PM
To: dev@apr.apache.org
Subject: Static Linked on Linux and Win32
Hi, I'm really excited to use APR, but I'm having trouble getting my 
"Hello
World" application to work with static linkage, on both Linux and 
Win32.

Basically, I have a single-file application:
# // Main.cpp
# #include <iostream>
# #include "apr.h"
# #include "apr_general.h"
#
# using namespace std;
#
# // main
# int main( int argc, char const* const* argv )
# {
#       cout << "Hello world!";
#
#       // Start APR
#       apr_app_initialize( &argc, &argv, 0 );
#
#       unsigned char buf[10];
#       apr_generate_random_bytes( buf, 10 );
#
#       // Done
#       apr_terminate( );
#       return 0;
# }
I can successfully compile, link, and execute the file on Win32 with 
APR
1.0.0 when linking with the dynamic library:

# $APRBASE\Debug\libapr-1.lib
# $APRBASE\Debug\libapr-1.dll
However, if I try to link with the static library on Win32:
# $APRBASE\libd\apr-1.lib
I get the following linker errors:
# Linking...
# main.obj : error LNK2019: unresolved external symbol 
__imp__apr_terminate
referenced in function _main
# main.obj : error LNK2019: unresolved external symbol
[EMAIL PROTECTED] referenced in function _main
# main.obj : error LNK2019: unresolved external symbol
[EMAIL PROTECTED] referenced in function _main
# Debug/APRtest.exe : fatal error LNK1120: 3 unresolved externals

Likewise, I can compile and link on Linux (Fedora Core 2) using the 
shared
library using the following Ant build file:

# <project name="aprtest" default="compile">
#       <target name="compile">
#               <exec executable="g++">
#                       <arg value="-oaprtest"/>
#                       <arg value="-I./unixlibs/apr-1/include/apr-1"/>
#                       <arg value="-L./unixlibs/apr-1/lib"/>
#                       <arg value="-lapr-1"/>
#                       <arg value="-shared"/>
#                       <arg file="main.cpp"/>
#               </exec>
#       </target>
# </project>
But if I change line 8 from "-shared" to "-static", I get the following
linker errors:
# compile:
#      [exec] /tmp/ccNWTzJF.o(.text+0x33): In function `main':
#      [exec] : undefined reference to `apr_app_initialize'
#      [exec] /tmp/ccNWTzJF.o(.text+0x44): In function `main':
#      [exec] : undefined reference to `apr_generate_random_bytes'
#      [exec] /tmp/ccNWTzJF.o(.text+0x4c): In function `main':
#      [exec] : undefined reference to `apr_terminate'
#      [exec] collect2: ld returned 1 exit status
So, I'm seeing the exact same problem on both platforms.  Obviously I'm
doing something wrong, and I'm hoping it's something simple.  Does 
anyone
see what I should do differently to get static linkage to work?

-david