Makefile: make NO_ICONV really mean "no iconv"

The Makefile tweak NO_ICONV is meant to allow Git to be built without
iconv in case iconv is not installed or is otherwise dysfunctional.
However, NO_ICONV's disabling of iconv is incomplete and can incorrectly
allow "-liconv" to slip into the linker flags when NEEDS_LIBICONV is
defined, which breaks the build when iconv is not installed.

On some platforms, iconv lives directly in libc, whereas, on others it
resides in libiconv. For the latter case, NEEDS_LIBICONV instructs the
Makefile to add "-liconv" to the linker flags. config.mak.uname
automatically defines NEEDS_LIBICONV for platforms which require it.
The adding of "-liconv" is done unconditionally, despite NO_ICONV.

Work around this problem by making NO_ICONV take precedence over
NEEDS_LIBICONV.

Reported by: Mahmoud Al-Qudsi <mqudsi@neosmart.net>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Eric Sunshine 2018-06-14 22:25:03 -04:00 committed by Junio C Hamano
parent a42a58d7b6
commit fdb1fbbc7d

View File

@ -1288,17 +1288,19 @@ ifdef APPLE_COMMON_CRYPTO
LIB_4_CRYPTO += -framework Security -framework CoreFoundation
endif
endif
ifdef NEEDS_LIBICONV
ifdef ICONVDIR
BASIC_CFLAGS += -I$(ICONVDIR)/include
ICONV_LINK = -L$(ICONVDIR)/$(lib) $(CC_LD_DYNPATH)$(ICONVDIR)/$(lib)
else
ICONV_LINK =
ifndef NO_ICONV
ifdef NEEDS_LIBICONV
ifdef ICONVDIR
BASIC_CFLAGS += -I$(ICONVDIR)/include
ICONV_LINK = -L$(ICONVDIR)/$(lib) $(CC_LD_DYNPATH)$(ICONVDIR)/$(lib)
else
ICONV_LINK =
endif
ifdef NEEDS_LIBINTL_BEFORE_LIBICONV
ICONV_LINK += -lintl
endif
EXTLIBS += $(ICONV_LINK) -liconv
endif
ifdef NEEDS_LIBINTL_BEFORE_LIBICONV
ICONV_LINK += -lintl
endif
EXTLIBS += $(ICONV_LINK) -liconv
endif
ifdef NEEDS_LIBGEN
EXTLIBS += -lgen