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-rw-r--r--ext/dl/extconf.rb22
1 files changed, 22 insertions, 0 deletions
diff --git a/ext/dl/extconf.rb b/ext/dl/extconf.rb
index 8317ac35ad7..e2b7af64100 100644
--- a/ext/dl/extconf.rb
+++ b/ext/dl/extconf.rb
@@ -8,8 +8,30 @@ $INSTALLFILES = [
["dl.h", "$(HDRDIR)"],
]
+if pkg_config("libffi")
+ # libffi closure api must be switched depending on the version
+ if system("pkg-config --atleast-version=3.0.9 libffi")
+ $defs.push(format('-DUSE_NEW_CLOSURE_API'))
+ end
+else
+ dir_config('ffi', '/usr/include', '/usr/lib')
+end
+
+unless have_header('ffi.h')
+ if have_header('ffi/ffi.h')
+ $defs.push(format('-DUSE_HEADER_HACKS'))
+ else
+ abort "ffi is missing"
+ end
+end
+
+unless have_library('ffi')
+ abort "ffi is missing"
+end
+
check = true
if( have_header("dlfcn.h") )
+
have_library("dl")
check &&= have_func("dlopen")
check &&= have_func("dlclose")