1 files changed, 90 insertions, 0 deletions
diff --git a/ext/cygwin32_ld.rb b/ext/cygwin32_ld.rb
new file mode 100644
index 0000000000..a9c8e21cb0
--- /dev/null
+++ b/ext/cygwin32_ld.rb
@@ -0,0 +1,90 @@
+#!/usr/local/bin/ruby
+require '../../rbconfig'
+include Config
+
+args = ARGV.join(" ")
+
+objs = []
+flags = []
+libname = ''
+Init = "../init"
+
+path = ''
+
+def writeInit
+  out = open("#{Init}.c", "w")
+
+  out.print %q@
+#include <windows.h>
+#include <stdio.h>
+
+extern struct _reent *__imp_reent_data;
+WINAPI dll_entry(int a, int b, int c)
+{
+    _impure_ptr =__imp_reent_data;
+    return 1;
+}
+main(){}
+//void impure_setup(struct _reent *_impure_ptrMain)
+//{
+//    _impure_ptr =__imp_reent_data;
+//}
+@
+  out.close
+end
+
+def xsystem cmd
+  print cmd, "\n"
+  system cmd
+end
+
+if args =~ /-o (\w+)\.dll/i
+  libname = $1
+  # Check for path:
+  if libname =~ /(\w+\/)(\w+)$/
+    path = $1
+    libname = $2
+  end
+  for arg in ARGV
+    case arg
+    when /\.[oa]$/i
+      objs.push(arg)
+    when /-o/, /\w+\.dll/i
+      ;
+    else
+      flags << arg
+    end
+  end
+
+  writeInit unless FileTest.exist?("#{Init}.c")
+  unless FileTest.exist?("#{Init}.o") and
+    File.mtime("#{Init}.c") < File.mtime("#{Init}.o")
+    xsystem "gcc -c #{Init}.c -o #{Init}.o"
+  end
+  
+  command = "echo EXPORTS > #{libname}.def"
+  xsystem command
+#  xsystem "echo impure_setup >> #{libname}.def"
+  xsystem "nm --extern-only " + objs.join(" ") +
+    "  | sed -n '/^........ [CDT] _/s///p' >> #{libname}.def"
+
+  command = "gcc -nostdlib -o junk.o -Wl,--base-file,#{libname}.base,--dll " +
+    objs.join(" ") + "  #{Init}.o "
+  command.concat(flags.join(" ") +
+    " -Wl,-e,_dll_entry@12 -lcygwin -lkernel32 #{CONFIG['srcdir']}/libruby.a")
+  xsystem command
+
+  command = "dlltool --as=as --dllname #{libname}.dll --def #{libname}.def --base-file #{libname}.base --output-exp #{libname}.exp"
+  xsystem command
+  
+  command = "gcc -s -nostdlib -o #{libname}.dll -Wl,--dll #{libname}.exp " +
+    objs.join(" ") + "  #{Init}.o "
+  command.concat(flags.join(" ") +
+    " -Wl,-e,_dll_entry@12 -lcygwin -lkernel32 #{CONFIG['srcdir']}/libruby.a")
+  xsystem command
+  File.unlink "junk.o" if FileTest.exist? "junk.o"
+
+else
+  # no special processing, just call ld
+  xsystem "ld #{args}"
+end