build
| Revision | f2dda303b01f251a6100beaeb0e0e734270e78be (tree) |
|---|---|
| Time | 2018-04-27 15:50:23 |
| Author | Chih-Wei Huang <cwhuang@linu...> |
| Commiter | Chih-Wei Huang |
kernel.mk: fix bison unable to find m4 file issue
Android builds a version of bison which is unusable outside the tree.
Since the bison is invoked in the KBUILD_OUTPUT dir, the error is
generated:
bison: external/bison/data/m4sugar/m4sugar.m4: cannot open: No such file or directory
To workaround it, add a symlink to the external dir so that bison can
get the expected m4 file.
core/tasks/kernel.mk (diff)| @@ -45,6 +45,7 @@ KERNEL_DOTCONFIG_FILE := $(KBUILD_OUTPUT)/.config | ||
| 45 | 45 | KERNEL_ARCH_CHANGED := $(if $(filter 0,$(shell grep -s ^$(if $(filter x86,$(TARGET_KERNEL_ARCH)),\#.)CONFIG_64BIT $(KERNEL_DOTCONFIG_FILE) | wc -l)),FORCE) |
| 46 | 46 | $(KERNEL_DOTCONFIG_FILE): $(KERNEL_CONFIG_FILE) $(wildcard $(TARGET_KERNEL_DIFFCONFIG)) $(KERNEL_ARCH_CHANGED) |
| 47 | 47 | $(hide) mkdir -p $(@D) && cat $(wildcard $^) > $@ |
| 48 | + $(hide) ln -sf ../../../../../../external $(@D) | |
| 48 | 49 | $(mk_kernel) oldnoconfig |
| 49 | 50 | |
| 50 | 51 | # bison is needed to build kernel and external modules from source |
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