toolchain/toolchain-external: add lib{gfortran,quadmath} to TOOLCHAIN_EXTERNAL_LIBS

Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

toolchain/toolchain-external/toolchain-external.mk

@@ -90,6 +90,14 @@ ifeq ($(BR2_INSTALL_LIBSTDCPP),y)
 TOOLCHAIN_EXTERNAL_LIBS += libstdc++.so.*
 endif
 
+ifeq ($(BR2_TOOLCHAIN_HAS_FORTRAN),y)
+TOOLCHAIN_EXTERNAL_LIBS += libgfortran.so.*
+# fortran needs quadmath on x86 and x86_64
+ifeq ($(BR2_TOOLCHAIN_HAS_LIBQUADMATH),y)
+TOOLCHAIN_EXTERNAL_LIBS += libquadmath.so*
+endif
+endif
+
 TOOLCHAIN_EXTERNAL_LIBS += $(call qstrip,$(BR2_TOOLCHAIN_EXTRA_EXTERNAL_LIBS))
 
 # Details about sysroot directory selection.