Hi OpenSSL
I managed to Cross Compile OpenSSL on Linux so that I can develop OpenSSL
applications that run on Windows entireliy inside a Linux build environment.
It even builds the executables and the DLLs on Linux.
Please add my changes to the official "Configure" script. The patch is in the
attachment.
Remark after some testing: As far as I see, the change in the MinGW target
(below "2. Change Link Arguments") is no more necessary in OpenSSL 1.0.0d. Just
remove the "die"-Line and everything is fine. :-)
Full documentation and Details of the patch are on my Homepage:
http://marc.waeckerlin.org/computer/blog/openssl_fuer_windows_mingw_unter_linux_crosscomilieren
>From the Homepage:
-------------------------------------------------------------------------------------
Details of the Patch
1. Remove "die"-Line
Without the patch, you first drop into the error message:
> ./config --cross-compile-prefix=i586-mingw32msvc- --prefix=/tmp/openssl
> shared mingw
Operating system: x86_64-whatever-linux2
Configuring for linux-x86_64
target already defined - linux-x86_64 (offending arg: mingw)
That's why the die-line is commented out.
2. Change Link Arguments
According to http://wagner.pp.ru/~vitus/articles/openssl-mingw.html, symbols
are not exported by default, that's why there is need for adding
-Wl,–export-all -shared.
-------------------------------------------------------------------------------------
Thanks, Regards
Marc
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--- openssl-1.0.0d.orig/Configure 2010-11-30 23:19:26.000000000 +0100
+++ openssl-1.0.0d/Configure 2011-04-27 08:48:48.898242218 +0200
@@ -505,7 +505,7 @@
"BC-32","bcc32::::WIN32::BN_LLONG DES_PTR RC4_INDEX EXPORT_VAR_AS_FN:${no_asm}:win32",
# MinGW
-"mingw", "gcc:-mno-cygwin -DL_ENDIAN -DWIN32_LEAN_AND_MEAN -fomit-frame-pointer -O3 -march=i486 -Wall::-D_MT:MINGW32:-lws2_32 -lgdi32 -lcrypt32:BN_LLONG ${x86_gcc_des} ${x86_gcc_opts} EXPORT_VAR_AS_FN:${x86_asm}:coff:win32:cygwin-shared:-D_WINDLL -DOPENSSL_USE_APPLINK:-mno-cygwin:.dll.a",
+"mingw", "gcc:-mno-cygwin -DL_ENDIAN -DWIN32_LEAN_AND_MEAN -fomit-frame-pointer -O3 -march=i486 -Wall::-D_MT:MINGW32:-lws2_32 -lgdi32 -lcrypt32:BN_LLONG ${x86_gcc_des} ${x86_gcc_opts} EXPORT_VAR_AS_FN:${x86_asm}:coff:win32:cygwin-shared:-D_WINDLL -DOPENSSL_USE_APPLINK:-mno-cygwin -Wl,--export-all -shared:.dll.a",
# As for OPENSSL_USE_APPLINK. Applink makes it possible to use .dll
# compiled with one compiler with application compiled with another
# compiler. It's possible to engage Applink support in mingw64 build,
@@ -869,7 +869,7 @@
}
else
{
- die "target already defined - $target (offending arg: $_)\n" if ($target ne "");
+ #die "target already defined - $target (offending arg: $_)\n" if ($target ne "");
$target=$_;
}
