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-rw-r--r--Makefile.in17
1 files changed, 13 insertions, 4 deletions
diff --git a/Makefile.in b/Makefile.in
index 8d89184..470f306 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -50,14 +50,23 @@ else
project_ver:=@PACKAGE_VERSION@
endif
-# If --with-arch is not specified, it defaults to whatever the compiler's
-# default is. The -with-abi is not necessary for this project. Unconditionally
-# compile it with a no-float ABI. i.e., ilp32 for 32-bit and lp64 for 64-bit.
+# The user may specify the host ISA (--with-arch) or host ABI (--with-abi).
+# *** If neither are given, they use the compiler's defaults.
+# *** If --with-arch is given but --with-abi is not, then the ABI defaults to
+# ilp32 or lp64, as appropriate for the ISA.
+# *** If --with-abi is given but --with-arch is not, then the ISA uses the
+# compiler's default.
ifneq (@WITH_ARCH@,)
march := -march=@WITH_ARCH@
is_32bit := $(findstring 32,$(march))
- mabi := -mabi=$(if $(is_32bit),ilp32,lp64)
+ ifeq (@WITH_ABI@,)
+ mabi := -mabi=$(if $(is_32bit),ilp32,lp64)
+ endif
+endif
+
+ifneq (@WITH_ABI@,)
+ mabi := -mabi=@WITH_ABI@
endif
# Installation directories