chore(release): version v1.4.0

This implements RFC 54: https://rfc.archlinux.page/0054-fortran-flags/

Makefile

@@ -1,6 +1,6 @@
 SHELL=/bin/bash -o pipefail
 
-V=1.3.2
+V=1.4.0
 BUILDTOOLVER ?= $(V)
 
 PREFIX = /usr/local

config/makepkg/conf.d/fortran.conf

@@ -1,4 +1,6 @@
 #!/hint/bash
+# shellcheck disable=2034
+
 #
 # /etc/makepkg.conf.d/fortran.conf
 #
@@ -9,10 +11,12 @@
 
 # Flags used for the Fortran compiler, similar in spirit to CFLAGS. Read
 # linkman:gfortran[1] for more details on the available flags.
-#FFLAGS="-O2 -pipe"
-#FCFLAGS="$FFLAGS"
+FFLAGS="-march=x86-64 -mtune=generic -O2 -pipe -fno-plt \
+        -Wp,-D_FORTIFY_SOURCE=3 -fstack-clash-protection -fcf-protection \
+        -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer"
+FCFLAGS="$FFLAGS"
 
 # Additional compiler flags appended to `FFLAGS` and `FCFLAGS` for use in debugging. Usually
 # this would include: ``-g''. Read linkman:gfortran[1] for more details on the wide
 # variety of compiler flags available.
-#DEBUG_FFLAGS="-g"
+DEBUG_FFLAGS="-g"