common: rename FCC to FC and introduce FFLAGS

common/build-profiles/README

@@ -7,3 +7,4 @@ for a specific architecture:
 	- XBPS_TRIPLET		(the compiler triplet)
 	- XBPS_CFLAGS		(C compiler flags for host compiler)
 	- XBPS_CXXFLAGS		(C++ compiler flags for the host compiler)
+	- XBPS_FFLAGS		(Fortran compiler flags for the host compiler)

common/build-profiles/bootstrap.sh

@@ -1,2 +1,3 @@
 XBPS_CFLAGS="-O2 -pipe"
 XBPS_CXXFLAGS="$XBPS_CFLAGS"
+XBPS_FFLAGS="-fPIC -pipe"

common/xbps-src/shutils/chroot.sh

@@ -17,6 +17,7 @@ XBPS_CFLAGS="$XBPS_CFLAGS"
 XBPS_CXXFLAGS="$XBPS_CXXFLAGS"
 XBPS_CPPFLAGS="$XBPS_CPPFLAGS"
 XBPS_LDFLAGS="$XBPS_LDFLAGS"
+XBPS_FFLAGS="$XBPS_FFLAGS"
 XBPS_HOSTDIR=/host
 _EOF
 

common/xbps-src/shutils/common.sh

@@ -382,12 +382,14 @@ setup_pkg() {
     export CXXFLAGS="$XBPS_TARGET_CXXFLAGS $XBPS_CXXFLAGS $XBPS_CROSS_CXXFLAGS $CXXFLAGS $dbgflags"
     export CPPFLAGS="$XBPS_TARGET_CPPFLAGS $XBPS_CPPFLAGS $XBPS_CROSS_CPPFLAGS $CPPFLAGS"
     export LDFLAGS="$XBPS_TARGET_LDFLAGS $XBPS_LDFLAGS $XBPS_CROSS_LDFLAGS $LDFLAGS"
+    export FFLAGS="$XBPS_TARGET_FFLAGS $XBPS_FFLAGS $XBPS_CROSS_FFLAGS $FFLAGS"
 
     export BUILD_CC="cc"
     export BUILD_CFLAGS="$XBPS_CFLAGS"
     export BUILD_CXXFLAGS="$XBPS_CXXFLAGS"
     export BUILD_CPPFLAGS="$XBPS_CPPFLAGS"
     export BUILD_LDFLAGS="$XBPS_LDFLAGS"
+    export BUILD_FFLAGS="$XBPS_FFLAGS"
 
     export CC_FOR_BUILD="cc"
     export CXX_FOR_BUILD="g++"
@@ -398,6 +400,7 @@ setup_pkg() {
     export CXXFLAGS_FOR_BUILD="$XBPS_CXXFLAGS"
     export CPPFLAGS_FOR_BUILD="$XBPS_CPPFLAGS"
     export LDFLAGS_FOR_BUILD="$XBPS_LDFLAGS"
+    export FFLAGS_FOR_BUILD="$XBPS_FFLAGS"
 
     if [ -n "$cross" ]; then
         # Regular tools names