From 71092b319e289920db34c0b5839867b3aa29de58 Mon Sep 17 00:00:00 2001
From: Simon Warta <simon@warta.it>
Date: Wed, 9 Sep 2015 23:02:48 +0200
Subject: Prevent users from building static non-amalgamations on MinGW and
 Cygwin

* Rename variable to avoid confusion of build_shared and
options.build_shared_lib
* Don't automatically change shared -> static. Force user to do that

Fixes #211
---
 configure.py                 | 13 ++++++-------
 src/build-data/os/cygwin.txt |  2 +-
 src/build-data/os/mingw.txt  |  6 +-----
 3 files changed, 8 insertions(+), 13 deletions(-)

diff --git a/configure.py b/configure.py
index 32b8a7d3a..235c631ef 100755
--- a/configure.py
+++ b/configure.py
@@ -971,14 +971,14 @@ class OsInfo(object):
                         'bin_dir': 'bin',
                         'lib_dir': 'lib',
                         'doc_dir': 'share/doc',
-                        'build_shared': 'yes',
+                        'building_shared_supported': 'yes',
                         'install_cmd_data': 'install -m 644',
                         'install_cmd_exec': 'install -m 755'
                         })
 
         self.ar_needs_ranlib = bool(self.ar_needs_ranlib)
 
-        self.build_shared = (True if self.build_shared == 'yes' else False)
+        self.building_shared_supported = (True if self.building_shared_supported == 'yes' else False)
 
     def ranlib_command(self):
         return ('ranlib' if self.ar_needs_ranlib else 'true')
@@ -1926,17 +1926,16 @@ def main(argv = None):
         raise Exception('Static build is only supported using amalgamation. '
                 'Add --via-amalgamation.')
 
+    if options.build_shared_lib and not osinfo.building_shared_supported:
+        raise Exception('Botan does not support building as shared library on the target os. '
+                'Build static using --disable-shared.')
+
     loaded_mods = choose_modules_to_use(modules, arch, cc, options)
 
     for m in loaded_mods:
         if modules[m].load_on == 'vendor':
             logging.info('Enabling use of external dependency %s' % (m))
 
-        if not osinfo.build_shared:
-            if options.build_shared_lib:
-                logging.info('Disabling shared lib on %s' % (options.os))
-                options.build_shared_lib = False
-
     using_mods = [modules[m] for m in loaded_mods]
 
     build_config = BuildConfigurationInformation(options, using_mods)
diff --git a/src/build-data/os/cygwin.txt b/src/build-data/os/cygwin.txt
index be67e2607..7788cd3ca 100644
--- a/src/build-data/os/cygwin.txt
+++ b/src/build-data/os/cygwin.txt
@@ -5,7 +5,7 @@ program_suffix .exe
 # Cygwin supports shared libs fine, but there are problems with making a Botan
 # shared library when libraries it depends on are static-only (such as libz).
 # So until I can figure out a work-around, it's disabled.
-build_shared no
+building_shared_supported no
 
 install_root c:\Botan
 doc_dir docs
diff --git a/src/build-data/os/mingw.txt b/src/build-data/os/mingw.txt
index a2ba363f2..5c72099e0 100644
--- a/src/build-data/os/mingw.txt
+++ b/src/build-data/os/mingw.txt
@@ -4,11 +4,7 @@ program_suffix .exe
 obj_suffix o
 static_suffix a
 
-soname_pattern_base  "libbotan-{version_major}.{version_minor}.dll"
-soname_pattern_abi   "libbotan-{version_major}.{version_minor}.dll.{abi_rev}"
-soname_pattern_patch "libbotan-{version_major}.{version_minor}.dll.{abi_rev}.{version_patch}"
-
-build_shared no
+building_shared_supported no
 
 ar_command "ar crs"
 ar_needs_ranlib yes
-- 
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