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authorGravatar Nikias Bassen2022-01-06 09:22:30 +0100
committerGravatar Nikias Bassen2022-01-06 09:22:30 +0100
commit8f66cfa156f04cc6f1f6a78bff261122de6801ca (patch)
treec5c50a4515dca0b6003975d7683e5beaac21c731 /configure.ac
parent8bc9ccc2bff2e3f92a952bf9ae9fa218f448c774 (diff)
downloadlibirecovery-8f66cfa156f04cc6f1f6a78bff261122de6801ca.tar.gz
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Check availability of constructor attribute and use it on Windows in favor of DllMain
Diffstat (limited to 'configure.ac')
-rw-r--r--configure.ac18
1 files changed, 18 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 518366c..e844956 100644
--- a/configure.ac
+++ b/configure.ac
@@ -82,6 +82,24 @@ case ${host_os} in
esac
AM_CONDITIONAL(WIN32, test x$win32 = xtrue)
+# Check if the C compiler supports __attribute__((constructor))
+AC_CACHE_CHECK([wether the C compiler supports constructor/destructor attributes],
+ ac_cv_attribute_constructor, [
+ ac_cv_attribute_constructor=no
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+ [[
+ static void __attribute__((constructor)) test_constructor(void) {
+ }
+ static void __attribute__((destructor)) test_destructor(void) {
+ }
+ ]], [])],
+ [ac_cv_attribute_constructor=yes]
+ )]
+)
+if test "$ac_cv_attribute_constructor" = "yes"; then
+ AC_DEFINE(HAVE_ATTRIBUTE_CONSTRUCTOR, 1, [Define if the C compiler supports constructor/destructor attributes])
+fi
+
AC_ARG_WITH([dummy],
[AS_HELP_STRING([--with-dummy], [Use no USB driver at all [default=no]. This is only useful if you just want to query the device list by product type or hardware model. All other operations are no-ops or will return IRECV_E_UNSUPPORTED.])],
[],