build-sys: fail if gnuefi files are not found

The build would fail later anyway, so it is better to bail
out early.

Also check for the second bios file only if the first one was not
found. I'm not sure which one is preferred. If the other one, the
order should be flipped.

1 files changed, 18 insertions, 19 deletions

diff --git a/configure.ac b/configure.ac
index 22a6f1781..01ee8dc99 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1166,40 +1166,39 @@ AS_IF([test "x$enable_gnuefi" != "xno"], [
         AC_CHECK_HEADERS(efi/${EFI_ARCH}/efibind.h,
                 [AC_DEFINE(HAVE_GNUEFI, 1, [Define if gnuefi is available])
                  have_gnuefi=yes],
-                [AS_IF([test "x$have_gnuefi" = xyes], [AC_MSG_ERROR([*** gnuefi support requested but headers not found])])
+                [AS_IF([test "x$enable_gnuefi" = xyes],
+                       [AC_MSG_ERROR([*** gnuefi support requested but headers not found])])
         ])
-])
-AM_CONDITIONAL(HAVE_GNUEFI, [test "$have_gnuefi" = "yes"])
 
-if test "x$enable_gnuefi" != "xno"; then
         efiroot=$(echo $(cd /usr/lib/$(gcc -print-multi-os-directory); pwd))
 
         EFI_LIB_DIR="$efiroot"
         AC_ARG_WITH(efi-libdir,
-                AS_HELP_STRING([--with-efi-libdir=PATH], [Path to efi lib directory]),
+                AS_HELP_STRING([--with-efi-libdir=PATH], [Path to EFI lib directory]),
                 [EFI_LIB_DIR="$withval"], [EFI_LIB_DIR="$efiroot"]
         )
         AC_SUBST([EFI_LIB_DIR])
 
+        have_efi_lds=no
         AC_ARG_WITH(efi-ldsdir,
-                AS_HELP_STRING([--with-efi-ldsdir=PATH], [Path to efi lds directory]),
+                AS_HELP_STRING([--with-efi-ldsdir=PATH], [Path to EFI lds directory]),
                 [EFI_LDS_DIR="$withval"],
-                [
-                        for EFI_LDS_DIR in "${efiroot}/gnuefi" "${efiroot}"; do
-                            for lds in ${EFI_LDS_DIR}/elf_${EFI_ARCH}_efi.lds; do
-                                    test -f ${lds} && break 2
-                            done
-                        done
-                ]
-        )
-        AC_SUBST([EFI_LDS_DIR])
+                [AS_FOR([DIR], [EFI_LDS_DIR], ["${efiroot}/gnuefi" "${efiroot}"],
+                        [AC_CHECK_FILE([DIR/elf_${EFI_ARCH}_efi.lds],
+                                       [have_efi_lds=yes && break])])])
+        AS_IF([test "x$have_efi_lds" = xyes],
+              [AC_SUBST([EFI_LDS_DIR])],
+              [AS_IF([test "x$enable_gnuefi" = xyes],
+                     [AC_MSG_ERROR([*** gnuefi support requested but files not found])],
+                     [have_gnuefi=no])])
 
         AC_ARG_WITH(efi-includedir,
-                AS_HELP_STRING([--with-efi-includedir=PATH], [Path to efi include directory]),
+                AS_HELP_STRING([--with-efi-includedir=PATH], [Path to EFI include directory]),
                 [EFI_INC_DIR="$withval"], [EFI_INC_DIR="/usr/include"]
         )
         AC_SUBST([EFI_INC_DIR])
-fi
+])
+AM_CONDITIONAL(HAVE_GNUEFI, [test "x$have_gnuefi" = xyes])
 
 # ------------------------------------------------------------------------------
 AC_ARG_WITH(unifont,
@@ -1452,8 +1451,8 @@ AS_IF([test "x$0" != "x./configure"], [
 # QEMU and OVMF UEFI firmware
 AS_IF([test x"$cross_compiling" = "xyes"], [], [
         AC_PATH_PROG([QEMU], [qemu-system-x86_64])
-        AC_CHECK_FILE([/usr/share/qemu/bios-ovmf.bin], [QEMU_BIOS=/usr/share/qemu/bios-ovmf.bin])
-        AC_CHECK_FILE([/usr/share/qemu-ovmf/bios.bin], [QEMU_BIOS=/usr/share/qemu-ovmf/bios.bin])
+        AC_CHECK_FILE([/usr/share/qemu/bios-ovmf.bin], [QEMU_BIOS=/usr/share/qemu/bios-ovmf.bin],
+                [AC_CHECK_FILE([/usr/share/qemu-ovmf/bios.bin], [QEMU_BIOS=/usr/share/qemu-ovmf/bios.bin])])
         AC_SUBST([QEMU_BIOS])
 ])