1ac5398589
I hate the thing too even though I made it, and rather just get rid of it. But we can't do that yet. In the meantime, this brings us more inline with autoconf and will make it slightly easier for me to write a pkg-config wrapper, which we need.
58 lines
2 KiB
Bash
58 lines
2 KiB
Bash
# N.B. It may be a surprise that the derivation-specific variables are exported,
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# since this is just sourced by the wrapped binaries---the end consumers. This
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# is because one wrapper binary may invoke another (e.g. cc invoking ld). In
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# that case, it is cheaper/better to not repeat this step and let the forked
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# wrapped binary just inherit the work of the forker's wrapper script.
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var_templates_list=(
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NIX_CFLAGS_COMPILE
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NIX_CFLAGS_COMPILE_BEFORE
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NIX_CFLAGS_LINK
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NIX_CXXSTDLIB_COMPILE
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NIX_CXXSTDLIB_LINK
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NIX_GNATFLAGS_COMPILE
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)
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var_templates_bool=(
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NIX_ENFORCE_NO_NATIVE
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)
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accumulateRoles
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# We need to mangle names for hygiene, but also take parameters/overrides
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# from the environment.
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for var in "${var_templates_list[@]}"; do
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mangleVarList "$var" ${role_suffixes[@]+"${role_suffixes[@]}"}
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done
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for var in "${var_templates_bool[@]}"; do
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mangleVarBool "$var" ${role_suffixes[@]+"${role_suffixes[@]}"}
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done
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# `-B@out@/bin' forces cc to use ld-wrapper.sh when calling ld.
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NIX_CFLAGS_COMPILE_@suffixSalt@="-B@out@/bin/ $NIX_CFLAGS_COMPILE_@suffixSalt@"
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# Export and assign separately in order that a failing $(..) will fail
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# the script.
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if [ -e @out@/nix-support/libc-cflags ]; then
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NIX_CFLAGS_COMPILE_@suffixSalt@="$(< @out@/nix-support/libc-cflags) $NIX_CFLAGS_COMPILE_@suffixSalt@"
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fi
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if [ -e @out@/nix-support/cc-cflags ]; then
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NIX_CFLAGS_COMPILE_@suffixSalt@="$(< @out@/nix-support/cc-cflags) $NIX_CFLAGS_COMPILE_@suffixSalt@"
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fi
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if [ -e @out@/nix-support/gnat-cflags ]; then
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NIX_GNATFLAGS_COMPILE_@suffixSalt@="$(< @out@/nix-support/gnat-cflags) $NIX_GNATFLAGS_COMPILE_@suffixSalt@"
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fi
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if [ -e @out@/nix-support/cc-ldflags ]; then
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NIX_LDFLAGS_@suffixSalt@+=" $(< @out@/nix-support/cc-ldflags)"
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fi
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if [ -e @out@/nix-support/cc-cflags-before ]; then
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NIX_CFLAGS_COMPILE_BEFORE_@suffixSalt@="$(< @out@/nix-support/cc-cflags-before) $NIX_CFLAGS_COMPILE_BEFORE_@suffixSalt@"
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fi
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# That way forked processes will not extend these environment variables again.
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export NIX_CC_WRAPPER_FLAGS_SET_@suffixSalt@=1
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