disable configure caching in gdb, courtesy of Fathi Boudra

diff --git a/toolchain/gdb/gdb.mk b/toolchain/gdb/gdb.mk
index f57946f201328874ecee7ef382f8c6edb5954f18..49b295c2a27c45e382bf24e753ed0b9d102f5752 100644 (file)
--- a/toolchain/gdb/gdb.mk
+++ b/toolchain/gdb/gdb.mk
@@ -84,13 +84,14 @@ GDB_TARGET_CONFIGURE_VARS:= \
 
 $(GDB_TARGET_DIR)/.configured: $(GDB_DIR)/.unpacked
        mkdir -p $(GDB_TARGET_DIR)
-       (cd $(GDB_TARGET_DIR); rm -rf config.cache; \
+       (cd $(GDB_TARGET_DIR); \
                gdb_cv_func_sigsetjmp=yes \
                $(TARGET_CONFIGURE_OPTS) \
                CFLAGS_FOR_TARGET="$(TARGET_CFLAGS) $(TARGET_LDFLAGS) -Wno-error" \
                CFLAGS="$(TARGET_CFLAGS) $(TARGET_LDFLAGS) -Wno-error" \
                $(GDB_TARGET_CONFIGURE_VARS) \
                $(GDB_DIR)/configure \
+               --cache-file=/dev/null \
                --build=$(GNU_HOST_NAME) \
                --host=$(REAL_GNU_TARGET_NAME) \
                --target=$(REAL_GNU_TARGET_NAME) \
@@ -135,11 +136,12 @@ GDB_SERVER_DIR:=$(BUILD_DIR)/gdbserver-$(GDB_VERSION)
 
 $(GDB_SERVER_DIR)/.configured: $(GDB_DIR)/.unpacked
        mkdir -p $(GDB_SERVER_DIR)
-       (cd $(GDB_SERVER_DIR); rm -rf config.cache; \
+       (cd $(GDB_SERVER_DIR); \
                $(TARGET_CONFIGURE_OPTS) \
                gdb_cv_func_sigsetjmp=yes \
                bash_cv_have_mbstate_t=yes \
                $(GDB_DIR)/gdb/gdbserver/configure \
+               --cache-file=/dev/null \
                --build=$(GNU_HOST_NAME) \
                --host=$(REAL_GNU_TARGET_NAME) \
                --target=$(REAL_GNU_TARGET_NAME) \
@@ -165,6 +167,7 @@ $(GDB_SERVER_DIR)/gdbserver: $(GDB_SERVER_DIR)/.configured
        $(MAKE) CC=$(TARGET_CC) MT_CFLAGS="$(TARGET_CFLAGS)" \
                -C $(GDB_SERVER_DIR)
        $(STRIPCMD) $(GDB_SERVER_DIR)/gdbserver
+
 $(TARGET_DIR)/usr/bin/gdbserver: $(GDB_SERVER_DIR)/gdbserver
 ifeq ($(strip $(BR2_CROSS_TOOLCHAIN_TARGET_UTILS)),y)
        mkdir -p $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/target_utils
@@ -191,10 +194,11 @@ GDB_HOST_DIR:=$(TOOL_BUILD_DIR)/gdbhost-$(GDB_VERSION)
 
 $(GDB_HOST_DIR)/.configured: $(GDB_DIR)/.unpacked
        mkdir -p $(GDB_HOST_DIR)
-       (cd $(GDB_HOST_DIR); rm -rf config.cache; \
+       (cd $(GDB_HOST_DIR); \
                gdb_cv_func_sigsetjmp=yes \
                bash_cv_have_mbstate_t=yes \
                $(GDB_DIR)/configure \
+               --cache-file=/dev/null \
                --prefix=$(STAGING_DIR) \
                --build=$(GNU_HOST_NAME) \
                --host=$(GNU_HOST_NAME) \
@@ -226,8 +230,6 @@ gdbhost-clean:
 gdbhost-dirclean:
        rm -rf $(GDB_HOST_DIR)
 
-
-
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