We've had this discussion (Jonas and me) a looong time ago (2013) with MacOS Maverics....

In the past, when xcode commandline tools was installed it created a link to crt1.10.5.o in /usr/lib.

It now seems that this is not done anymore (at least not on my computer...) and as /usr/lib is write protected for root in newer versions of MacOSX it is not that easy to create a link by hand.

The good news is that

clang -print-search-dirs

programs: =/Library/Developer/CommandLineTools/usr/bin libraries: =/Library/Developer/CommandLineTools/usr/lib/clang/10.0.0

returns a libraries path that helps finding a valid crt1.(10.5).o file:

find /Library/Developer/CommandLineTools/ -name "crt1*" /Library/Developer/CommandLineTools//SDKs/MacOSX.sdk/usr/lib/crt1.o /Library/Developer/CommandLineTools//SDKs/MacOSX.sdk/usr/lib/crt1.10.5.o /Library/Developer/CommandLineTools//SDKs/MacOSX.sdk/usr/lib/crt1.10.6.o

I managed to get a successful compile by doing this:

make clean buildbase CPU_TARGET=x86_64 INSTALL_PREFIX=$HOME/3.1.1 FPCOPT="-XR/Library/Developer/CommandLineTools//SDKs/MacOSX.sdk/"

and patching my /etc/fpc.cfg to include:

#ifdef cpui386
-XR/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/ -Fl/Library/Developer/CommandLineTools/usr/lib/clang/10.0.0 #endif
#ifdef cpux86_64
-XR/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/ -Fl/Library/Developer/CommandLineTools/usr/lib/clang/10.0.0 #endif

both actions were needed for a successful compile...

Is there a better way to make compiles work on Mojave?

Michael

What errors do you get if you don't include the -Fl option?

Is there a better way to make compiles work on Mojave?

The -XR above seems to be the correct way to handle this change. We could also hard code that search path in the compiler in addition to /usr/lib

Jonas

I only adjusted -Fl to match the current version installed, having a wrong issue there did not change the build behaviour. The change necessary was to include

-XR/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/

otherwise fpcmake will not compile.

Cross-Compiling did however not work, the makefile of fpcmake does seem to support FPCOPT but somehow the parameter does not get forwarded to the makefile:

/Library/Developer/CommandLineTools/usr/bin/make -C utils/fpcm bootstrap FPC=/Users/ring/devel/fpc-arm/compiler/ppcrossarm
FPCFPMAKE=/Users/ring/devel/fpc-arm/compiler/ppc RELEASE=1 'OPT='

results in:

/Users/ring/devel/fpc-arm/compiler/ppc fpcmake.pp -n -Fu/Users/ring/devel/fpc-arm/rtl/units/x86_64-darwin -FU/Users/ring/devel/fpc-arm/utils/fpcm/units/x86_64-darwin ld: file not found: /usr/lib/crt1.10.5.o
An error occurred while linking

I could make crosscompiling work by doing this (Use OPT instead of FPCOPT)

make clean buildbase CROSSINSTALL=1 OS_TARGET=embedded CPU_TARGET=arm SUBARCH=$SUBARCH CROSSOPT="$CROSSOPT" BINUTILSPREFIX=arm-none-eabi- OPT="-XR/Library/Developer/CommandLineTools//SDKs/MacOSX.sdk/"

I hope that hardcoding the path
/Library/Developer/CommandLineTools//SDKs/MacOSX.sdk/ in FPC will solve this.....

Thank you,

Michael

This small patch helped me to get rid of the need to define -XR/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/ in /etc/fpc.cfg

It would be greet to have something similar in the upcoming 3.0.5 release (and of course in trunk) so that also building lazarus with a 3.0.5 compiler works (It currently fails without the entry in fpc.cfg)

Michael

Index: compiler/systems/t_bsd.pas
=================================================================== --- compiler/systems/t_bsd.pas    (revision 39358) +++ compiler/systems/t_bsd.pas    (working copy) @@ -248,6 +248,9 @@
             system_i386_darwin,
             system_x86_64_darwin:
               begin
+                { 10.14 and later: crt1.o } +                if CompareVersionStrings(MacOSXVersionMin,'10.14')>=0 then +                  exit('crt1.so');                  { 10.8 and later: no crt1.* }                  if CompareVersionStrings(MacOSXVersionMin,'10.8')>=0 then                    exit('');
@@ -377,7 +380,10 @@
   if startupfile'' then
     begin
      if not librarysearchpath.FindFile(startupfile,false,result) then -       result:='/usr/lib/'+startupfile
+       if sysutils.fileexists('/usr/lib/'+startupfile) then +         result:='/usr/lib/'+startupfile
+       else if
sysutils.fileexists('/Library/Developer/CommandLineTools//SDKs/MacOSX.sdk/usr/lib/'+startupfile) then
+
result:='/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib/'+startupfile      end
   else
     result:='';

Seems I misunderstood the meaning of "MacOSXVersionMin", it is set to 10.5 on my MacOS Mojave !!??!!

So the patch gets even more simple:

Index: compiler/systems/t_bsd.pas
=================================================================== --- compiler/systems/t_bsd.pas    (revision 39358) +++ compiler/systems/t_bsd.pas    (working copy) @@ -377,7 +377,10 @@
   if startupfile'' then
     begin
      if not librarysearchpath.FindFile(startupfile,false,result) then -       result:='/usr/lib/'+startupfile
+       if sysutils.fileexists('/usr/lib/'+startupfile) then +         result:='/usr/lib/'+startupfile
+       else if
sysutils.fileexists('/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib/'+startupfile) then
+
result:='/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib/'+startupfile      end
   else
     result:='';