diff --git a/Configurations/10-main.conf b/Configurations/10-main.conf
index 8f08fb8d9b..32ef7780fb 100644
--- a/Configurations/10-main.conf
+++ b/Configurations/10-main.conf
@@ -239,9 +239,7 @@ my %targets = (
         CFLAGS           => add_before(picker(default => "-Wall",
                                               debug   => "-O0 -g",
                                               release => "-O3 -fomit-frame-pointer")),
-        cflags           => add(threads("-pthread")),
         lib_cppflags     => add("-DL_ENDIAN"),
-        ex_libs          => add(threads("-pthread")),
         bn_ops           => "BN_LLONG",
         shared_cflag     => "-fPIC",
         shared_ldflag    => add_before("-shared -static-libgcc"),
@@ -262,9 +260,8 @@ my %targets = (
         CFLAGS           => add_before(picker(default => "-Wall",
                                               debug   => "-O0 -g",
                                               release => "-O3")),
-        cflags           => add_before("-m64", threads("-pthread")),
+        cflags           => add("-m64"),
         lib_cppflags     => add("-DL_ENDIAN"),
-        ex_libs          => add(threads("-pthread")),
         bn_ops           => "SIXTY_FOUR_BIT_LONG",
         asm_arch         => 'x86_64',
         perlasm_scheme   => "elf",
@@ -296,7 +293,6 @@ my %targets = (
         lib_cppflags     => add("-DL_ENDIAN"),
         thread_scheme    => "pthreads",
         lflags           => add(threads("-mt")),
-        ex_libs          => add(threads("-lpthread")),
         bn_ops           => "SIXTY_FOUR_BIT_LONG",
         asm_arch         => 'x86_64',
         perlasm_scheme   => "elf",
@@ -312,9 +308,7 @@ my %targets = (
         CFLAGS           => add_before(picker(default => "-Wall",
                                               debug   => "-O0 -g",
                                               release => "-O3")),
-        cflags           => add(threads("-pthread")),
         lib_cppflags     => add("-DB_ENDIAN -DBN_DIV2W"),
-        ex_libs          => add(threads("-pthread")),
         bn_ops           => "BN_LLONG RC4_CHAR",
         shared_cflag     => "-fPIC",
         shared_ldflag    => add_before("-shared -static-libgcc"),
@@ -353,7 +347,6 @@ my %targets = (
         cppflags         => add(threads("-D_REENTRANT")),
         lib_cppflags     => add("-DB_ENDIAN -DBN_DIV2W"),
         lflags           => add(threads("-mt")),
-        ex_libs          => add(threads("-lpthread")),
         bn_ops           => "BN_LLONG RC4_CHAR",
         shared_cflag     => "-KPIC",
         shared_ldflag    => add_before("-G -dy -z text"),