1574b11598
Some older versions of gcc give "all.hpp: linker input file unused because linking not done" otherwise, because they don't realize files named *.hpp are headers. Reported-by: Wayne Scott <wsc9tt@gmail.com>
30 lines
846 B
Text
30 lines
846 B
Text
. ./redoconf.rc
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rc_include rc/CC.rc
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base="${1#rc/}"
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src="${base%.h.precompiled.rc}"
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# Check whether the compiler supports forcing
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# the language type. Some versions of gcc
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# need this in order to precompile headers
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# named *.hpp.
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x="-x${NL}c-header"
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if (appendln CFLAGS "$x" && rc_compile cc nolink); then
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rc_appendln CFLAGS_PCH_LANG "$x"
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fi
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# The existence of the specific gcc warning about
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# precompiled headers is a pretty good indicator
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# that they are supported in the way we expect.
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rc_appendln CFLAGS "-Winvalid-pch"
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if rc_compile cc nolink; then
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rc_appendln CFLAGS_PCH "-include$NL$src.h"
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rc_appendln CFLAGS_PCH_FPIC "-include$NL$src.h.fpic"
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rc_appendln PRE_CC_TARGETS "$src.h.gch"
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rc_appendln PRE_CC_TARGETS_FPIC "$src.h.fpic.gch"
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rc_save
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else
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echo "Precompiled C headers not supported." >&2
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rc_undo
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fi
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