Bring in FreeBSD support

Check for FreeBSD specific issues, it is mostly the same as Darwin.

Signed-off-by: Dan McGregor <dan.mcgregor@usask.ca>

scripts/build/internals.sh

@@ -17,6 +17,9 @@ do_finish() {
             *darwin*)
                 strip_args=""
                 ;;
+            *freebsd*)
+                strip_args="--strip-all"
+                ;;
             *)
                 strip_args="--strip-all -v"
                 ;;

scripts/build/kernel/linux.sh

@@ -103,24 +103,28 @@ do_kernel_headers() {
     esac
 
     CT_DoLog EXTRA "Installing kernel headers"
-    CT_DoExecLog ALL                                    \
-    make -C "${kernel_path}"                         \
-         CROSS_COMPILE="${CT_TARGET}-"                  \
-         O="${CT_BUILD_DIR}/build-kernel-headers"       \
-         ARCH=${kernel_arch}                            \
-         INSTALL_HDR_PATH="${CT_SYSROOT_DIR}/usr"       \
-         ${V_OPT}                                       \
+    CT_DoExecLog ALL                                         \
+    make -C "${kernel_path}"                                 \
+         BASH="$(which bash)"                                \
+         HOSTCC="${CT_BUILD}-gcc"                            \
+         CROSS_COMPILE="${CT_TARGET}-"                       \
+         O="${CT_BUILD_DIR}/build-kernel-headers"            \
+         ARCH=${kernel_arch}                                 \
+         INSTALL_HDR_PATH="${CT_SYSROOT_DIR}/usr"            \
+         ${V_OPT}                                            \
          headers_install
 
     if [ "${CT_KERNEL_LINUX_INSTALL_CHECK}" = "y" ]; then
         CT_DoLog EXTRA "Checking installed headers"
-        CT_DoExecLog ALL                                    \
-        make -C "${kernel_path}"                         \
-             CROSS_COMPILE="${CT_TARGET}-"                  \
-             O="${CT_BUILD_DIR}/build-kernel-headers"       \
-             ARCH=${kernel_arch}                            \
-             INSTALL_HDR_PATH="${CT_SYSROOT_DIR}/usr"       \
-             ${V_OPT}                                       \
+        CT_DoExecLog ALL                                         \
+        make -C "${kernel_path}"                                 \
+             BASH="$(which bash)"                                \
+             HOSTCC="${CT_BUILD}-gcc"                            \
+             CROSS_COMPILE="${CT_TARGET}-"                       \
+             O="${CT_BUILD_DIR}/build-kernel-headers"            \
+             ARCH=${kernel_arch}                                 \
+             INSTALL_HDR_PATH="${CT_SYSROOT_DIR}/usr"            \
+             ${V_OPT}                                            \
              headers_check
     fi
 

scripts/build/libc/glibc.sh

@@ -346,13 +346,21 @@ do_libc_backend_once() {
     build_ldflags="${CT_LDFLAGS_FOR_BUILD}"
 
     case "$CT_BUILD" in
-        *mingw*|*cygwin*|*msys*|*darwin*)
+        *mingw*|*cygwin*|*msys*|*darwin*|*freebsd*)
             # When installing headers on Cygwin, Darwin, MSYS2 and MinGW-w64 sunrpc needs
             # gettext for building cross-rpcgen.
             build_cppflags="${build_cppflags} -I${CT_BUILDTOOLS_PREFIX_DIR}/include/"
             build_ldflags="${build_ldflags} -lintl -liconv"
+            case "$CT_BUILD" in
+                *cygwin*|*freebsd*)
+                # Additionally, stat in FreeBSD, Cygwin, and possibly others
+                # is always 64bit, so replace struct stat64 with stat.
+                build_cppflags="${build_cppflags} -Dstat64=stat"
+                ;;
+            esac
             ;;
     esac
+
     extra_make_args+=( "BUILD_CFLAGS=${build_cflags}" )
     extra_make_args+=( "BUILD_CPPFLAGS=${build_cppflags}" )
     extra_make_args+=( "BUILD_LDFLAGS=${build_ldflags}" )