[Buildroot] [PATCH v3 03/14] package/gcc: fix fortran support
Samuel Martin
s.martin49 at gmail.com
Sun Jul 3 13:47:39 UTC 2016
Fortran depends on libquadmath when available, make the buildroot
toolchain option depends on this new hidden symbol,
[Vincent: only do "HOST_GCC_FINAL_USR_LIBS += libquadmath" for i386 and
x86_64, otherwise it will fail saying "libquadmath.a: file not found"]
Signed-off-by: Samuel Martin <s.martin49 at gmail.com>
Signed-off-by: Vicente Olivert Riera <Vincent.Riera at imgtec.com>
---
changes v1->v2:
- none
changes v2->v3:
- s/BR2_I386/BR2_i386/ (Thomas P.)
- use BR2_TOOLCHAIN_HAS_LIBQUADMATH to install the lib
- rephrase commit log
- update dependencies in Config.in
---
package/gcc/Config.in.host | 7 +++++++
package/gcc/gcc-final/gcc-final.mk | 4 ++++
2 files changed, 11 insertions(+)
diff --git a/package/gcc/Config.in.host b/package/gcc/Config.in.host
index 44a72f1..8a42828 100644
--- a/package/gcc/Config.in.host
+++ b/package/gcc/Config.in.host
@@ -118,8 +118,15 @@ config BR2_TOOLCHAIN_BUILDROOT_CXX
C++ language and you want C++ libraries to be installed on
your target system.
+comment "Fortran support needs a toolchain w/ wchar"
+ depends on BR2_TOOLCHAIN_HAS_LIBQUADMATH
+ depends on !BR2_USE_WCHAR # libquadmath
+
config BR2_TOOLCHAIN_BUILDROOT_FORTRAN
bool "Enable Fortran support"
+ # on architecture building libqadmath, wchar is required
+ depends on !BR2_TOOLCHAIN_HAS_LIBQUADMATH || \
+ (BR2_TOOLCHAIN_HAS_LIBQUADMATH && BR2_USE_WCHAR)
help
Enable this option if you want your toolchain to support the
Fortran language and you want Fortran libraries to be
diff --git a/package/gcc/gcc-final/gcc-final.mk b/package/gcc/gcc-final/gcc-final.mk
index 78ceeba..284d34c 100644
--- a/package/gcc/gcc-final/gcc-final.mk
+++ b/package/gcc/gcc-final/gcc-final.mk
@@ -163,6 +163,10 @@ endif
ifeq ($(BR2_TOOLCHAIN_BUILDROOT_FORTRAN),y)
HOST_GCC_FINAL_USR_LIBS += libgfortran
+# fortran needs quadmath on x86 and x86_64
+ifeq ($(BR2_TOOLCHAIN_HAS_LIBQUADMATH),y)
+HOST_GCC_FINAL_USR_LIBS += libquadmath
+endif
endif
ifeq ($(BR2_GCC_ENABLE_OPENMP),y)
--
2.9.0
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