[MacPorts] #56396: Bulding shared library libcurl for iOS with bitcode support from sources failed

[MacPorts]

#56396: Bulding shared library libcurl for iOS with bitcode support from sources
failed
---------------------------------------------+--------------------
 Reporter:  AlexanderplUs                    |      Owner:  (none)
     Type:  defect                           |     Status:  new
 Priority:  Normal                           |  Milestone:
Component:  base                             |    Version:  2.4.3
 Keywords:  macos libtool.m4 bitcode shared  |       Port:
---------------------------------------------+--------------------
 I try to compile curl (the latest version curl-7_59_0) as shared library
 for iOS with bitcode support ({{{-fembed-bitcode}}} flags) using MacPorts
 and get next linker error:
 {{{
 ld: -flat_namespace and -bitcode_bundle (Xcode setting ENABLE_BITCODE=YES)
 cannot be used together
 }}}

 This error is caused by {{{libtool.m4}}} script which add
 {{{-flat_namespace}}} and {{{-undefined suppress}}} flags to the linker
 command line:

 {{{
     case $host_os in
     rhapsody* | darwin1.[[012]])
       _lt_dar_allow_undefined='$wl-undefined ${wl}suppress' ;;
     darwin1.*)
       _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined
 ${wl}suppress' ;;
     darwin*) # darwin 5.x on
       # if running on 10.5 or later, the deployment target defaults
       # to the OS version, if on x86, and 10.4, the deployment
       # target defaults to 10.4. Don't you love it?
       case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
         10.0,*86*-darwin8*|10.0,*-darwin[[91]]*)
           _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
         10.[[012]][[,.]]*)
           _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined
 ${wl}suppress' ;;
         10.*)
           _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
       esac
 }}}

 If I manually remove this flags library compiles succesfully.
 How can I turn off adding of this flags for iOS libraries compilation as
 they both are incompatible with LLVM bitcode?

 uname -a:
 {{{
 Darwin Mac-mini.local 17.5.0 Darwin Kernel Version 17.5.0: Mon Mar  5
 22:24:32 PST 2018; root:xnu-4570.51.1~1/RELEASE_X86_64 x86_64
 }}}

 My config for curl:
 {{{
 CLAGS="-arch armv7 -mcpu=cortex-a8 -mfpu=neon -mfloat-abi=softfp -isysroot
 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk
 -miphoneos-version-min=8.0 -fembed-bitcode -Wc,-fembed-bitcode
 -DTARGET_OS_IPHONE=1" LDFLAGS="-arch armv7 -mcpu=cortex-a8 -mfpu=neon
 -mfloat-abi=softfp -isysroot
 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk
 -miphoneos-version-min=8.0 -fembed-bitcode -Wc,-fembed-bitcode
 -DTARGET_OS_IPHONE=1" curl/configure --enable-shared --disable-static
 --host=armv7-apple-darwin --prefix=output/armv7-apple-darwin --enable-pic
 --without-zlib --enable-ipv6 --disable-dict --disable-gopher --disable-
 file --disable-ldap --disable-ldaps --disable-manual --disable-pop3
 --disable-smtp --disable-imap --disable-proxy --disable-rtsp --disable-smb
 --disable-telnet --disable-verbose --disable-tftp --without-libidn
 --without-librtmp --with-
 sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/56396>
MacPorts <https://www.macports.org/>
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