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39 lines
1.3 KiB
39 lines
1.3 KiB
#!/bin/bash |
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# This sets environment variables used by scripts/make.sh |
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# People run ./configure out of habit, so do "defconfig" for them. |
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if [ "$(basename "$0")" == configure ] |
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then |
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echo "Assuming you want 'make defconfig', but you should probably check the README." |
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make defconfig |
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exit $? |
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fi |
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# A synonym. |
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[ -z "$CROSS_COMPILE" ] && CROSS_COMPILE="$CROSS" |
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# CFLAGS and OPTIMIZE are different so you can add extra CFLAGS without |
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# disabling default optimizations |
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[ -z "$CFLAGS" ] && CFLAGS="-Wall -Wundef -Wno-char-subscripts -Werror=implicit-function-declaration" |
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# Required for our expected ABI. we're 8-bit clean thus "char" must be unsigned. |
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CFLAGS="$CFLAGS -funsigned-char" |
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[ -z "$OPTIMIZE" ] && OPTIMIZE="-Os -ffunction-sections -fdata-sections -fno-asynchronous-unwind-tables -fno-strict-aliasing" |
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# We accept LDFLAGS, but by default don't have anything in it |
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if [ "$(uname)" != "Darwin" ] |
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then |
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[ -z "$LDOPTIMIZE" ] && LDOPTIMIZE="-Wl,--gc-sections" |
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LDASNEEDED="-Wl,--as-needed" |
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fi |
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# The makefile provides defaults for these, so this only gets used if |
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# you call scripts/make.sh and friends directly. |
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[ -z "$CC" ] && CC=cc |
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[ -z "$STRIP" ] && STRIP=strip |
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# If HOSTCC needs CFLAGS or LDFLAGS, just add them to the variable |
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# ala HOSTCC="blah-cc --static" |
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[ -z "$HOSTCC" ] && HOSTCC=cc
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