[vlc-devel] Problems with Mac OS X compile

[Derk-Jan Hartman]

On 3 aug 2008, at 12:28, Derk-Jan Hartman wrote:
> Where and when are you seeing this problem exactly. ?
>
> The primary commit that changed this was http://git.videolan.org/?p=vlc.git;a=commitdiff;h=084f988fe584d9d2075ccfd7d7c35bb1829b726c
> I'm not sure why this was done, and this developer has since left the
> project...
> I agree with you that the current situation is incorrect, but I'm also
> hesitant to change, without knowing why it is written as it is.

I have tested this, and it seems that if we use CFLAGS, that than  
AC_CHECK_LIB becomes confused :(
ergo, patches are welcome, but i don't see how to fix this atm,  
without breaking other things.

I would like to note however, that it is --with-macosx-sdk=DIR , not -- 
with-macosx-sdk as you seem to be using.

DJ


> On 2 aug 2008, at 19:30, Vance Shipley wrote:
>> I'm seeing the same problem as has been reported on a few previous
>> occassions with the configure line recommended in the "OSXCompile"
>> document.  The issue is that when "--with-macosx-sdk" is used the
>> options "-isysroot" and "-mmacosx-version-min" are added to CXX
>> (as well as CC, OBJC and LD):
>>
>>   dnl
>>   dnl  Check for Mac OS X SDK settings
>>   dnl
>>   AC_ARG_WITH(macosx-sdk,
>>      [  --with-macosx-sdk=DIR   compile using the SDK in DIR])
>>   if test "${with_macosx_sdk}" != "" ; then
>>       CC="${CC} -isysroot ${with_macosx_sdk}"
>>       CXX="${CXX} -isysroot ${with_macosx_sdk}"
>>       OBJC="${OBJC} -isysroot ${with_macosx_sdk}"
>>       LD="${LD} -syslibroot ${with_macosx_sdk}"
>>   fi
>>   AC_ARG_WITH(macosx-version-min,
>>      [  --with-macosx-version-min=VERSION  compile for MacOSX
>> VERSION and above])
>>   if test "${with_macosx_version_min}" != "" ; then
>>       CC="${CC} -mmacosx-version-min=${with_macosx_version_min}"
>>       CXX="${CXX} -mmacosx-version-min=${with_macosx_version_min}"
>>       OBJC="${OBJC} -mmacosx-version-min=${with_macosx_version_min}"
>>       LD="${LD} -macosx_version_min=${with_macosx_version_min}"
>>       CFLAGS_save="${CFLAGS_save} -DMACOSX_DEPLOYMENT_TARGET=$
>> {with_macosx_version_min}"; CFLAGS="${CFLAGS_save}"
>>       CXXFLAGS_save="${CXXFLAGS_save} -DMACOSX_DEPLOYMENT_TARGET=$
>> {with_macosx_version_min}"; CXXFLAGS="${CXXFLAGS_save}"
>>       OBJCFLAGS_save="${OBJCFLAGS_save} -DMACOSX_DEPLOYMENT_TARGET=$
>> {with_macosx_version_min}"; OBJCFLAGS="${OBJCFLAGS_save}"
>>       MACOSX_DEPLOYMENT_TARGET=${with_macosx_version_min}
>>       export MACOSX_DEPLOYMENT_TARGET
>>   fi
>>
>>
>> The autoconf macro AC_PROG_CXXCPP (included by other macros) contains
>> a test which checks to see if CXX is the GNU g++ compiler:
>>
>> 	if test -n "$CXX" && ( test "X$CXX" != "Xno" &&
>> 	    ( (test "X$CXX" = "Xg++" && `g++ -v >/dev/null 2>&1` ) ||
>> 	    (test "X$CXX" != "Xg++"))) ; then
>>
>> This fails because CXX isn't equal to "g++", it is now "g++ -isysroot
>> -mmacosx-version-min".
>>
>> It appears that the OS X specific flags are being added to CXX  
>> instead
>> of CXXFLAGS, as they should be, purposely.  I'm not clear on the use
>> of CXXFLAGS_save so I don't have the answer as to how to fix this.
>
>
>
>>
>> On Fri, Jun 20, 2008 at 01:41:29PM -0700, Dave Still wrote:
>>> In which case, I get the following error from "./configure --enable-
>>> debug --with-macosx-sdk":
>>>
>>> ...
>>> checking how to recognize dependent libraries... (cached) pass_all
>>> checking dlfcn.h usability... no
>>> checking dlfcn.h presence... yes
>>> configure: WARNING: dlfcn.h: present but cannot be compiled
>>> configure: WARNING: dlfcn.h:     check for missing prerequisite
>>> headers?
>>> configure: WARNING: dlfcn.h: see the Autoconf documentation
>>> configure: WARNING: dlfcn.h:     section "Present But Cannot Be
>>> Compiled"
>>> configure: WARNING: dlfcn.h: proceeding with the preprocessor's
>>> result
>>> configure: WARNING: dlfcn.h: in the future, the compiler will take
>>> precedence
>>> checking for dlfcn.h... yes
>>> checking how to run the C++ preprocessor... /lib/cpp
>>> configure: error: C++ preprocessor "/lib/cpp" fails sanity check
>>
>> _______________________________________________
>> vlc-devel mailing list
>> To unsubscribe or modify your subscription options:
>> http://mailman.videolan.org/listinfo/vlc-devel
>>
>
> _______________________________________________
> vlc-devel mailing list
> To unsubscribe or modify your subscription options:
> http://mailman.videolan.org/listinfo/vlc-devel
>