I am getting a strange error when trying to compile a simple fortran-90 file using gfortran. I am working on a macOS mojave system. I have gfortran 8.2.0 installed and I checked to be sure of this by doing the following:
Input: gfortran --version
Output: GNU Fortran (GCC) 8.2.0
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
Which indicates that gfortran installed correctly and I also confirmed this by typing simply: gfortran, into the terminal, which returns:
gfortran: fatal error: no input files
compilation terminated.
However, when I try to compile my file like so:
gfortran hello.f90 -o hello.x
I get an error which reads:
ld: library not found for -lSystem
collect2: error: ld returned 1 exit status
I've tried compiling in different ways and I also tried setting the LD_LIBRARY_PATH in .bash_profile as described by https://gcc.gnu.org/wiki/GFortranBinaries32Linux but I still get the same error. The gfortran directory has the pathname: /usr/local/gfortran, however another gfortran which is not a directory can be found in /usr/local/bin
Typing:
which gfortran
Outputs:
/usr/local/bin/gfortran
And a long list search of this directory:
Input: ls -l /usr/local/bin/gfortran
Output: lrwxr-xr-x 1 root wheel 32 15 May 14:07
/usr/local/bin/gfortran -> /usr/local/gfortran/bin/gfortran
How can I fix this where everything seems to be correctly installed?
Any help would be greatly appreciated!
On macOS Big Sur v11.1:
Relevant SO post: https://apple.stackexchange.com/questions/408999/gfortran-compiler-error-on-mac-os-big-sur
The fix is to add the stdlib to your $LIBRARY_PATH. For some reason or another it isn't in your standard $PATH anymore on 11.1.
export LIBRARY_PATH="$LIBRARY_PATH:/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib"
(or add it to login file and restart terminal).
I added this to my ~/.profile:
export SDKROOT=$(xcrun --sdk macosx --show-sdk-path)
export LIBRARY_PATH="$LIBRARY_PATH:$SDKROOT/usr/lib"
And it works.
I'll also chime in (19 Dec 2020) that I just updated from MacOS Mojave to Catalina and suddenly got this error.
It resolved itself with
brew reinstall gcc
brew reinstall gfortran
Update: I tried what was suggested and installed the gfortran build from the gcc package using homebrew which gave me a newer version of gfortran and my problem was fixed!
I had the same problem, but installing gfortran build from the gcc package using homebrew did not help. Instead, I installed the whole gcc using homebrew:
brew install gcc
and that solved the problem.
For those using MacPorts.
# Installed `gcc8` and `gcc_select`
sudo port install gcc_select gcc8
# then to create "gfortran" softlink to "gfortran-mp-8"
sudo port select --set gcc gcc8
# and added to my .profile
export LIBRARY_PATH="$LIBRARY_PATH:/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib"
I did ls -l /Library/Developer/CommandLineTools/SDKs/ and found that Xcode had installed one SDK for Catalina and one for Big Sur. I changed the soft link for MacOSX.sdk to point to the Catalina version.
Just placed this line at the end of .zshrc:
export LIBRARY_PATH="$LIBRARY_PATH:/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib"
and ran my Fortran code again to compile – success! The issue with -lSystem has been solved in my macOS system.
I had this problem, and I'd tried lots of thing to solve the problem, but only using these "both" commands solved it:
brew reinstall gcc
brew reinstall gfortran
I recently had this
ld: library not found for -lSystem
problem after upgrading Mac OS from v10 to v11 (Big Sur). I am using Xcode 12.3 and I used brew install gcc to install gfortran 10.2.0. I still saw the error after trying brew reinstall gcc. I was able to solve the problem using:
brew install gfortran
but I do not know why this works.
Related
I've been trying to get gfortran working on MacOs Ventura(with a M1 chip) for quite some time.
Briefly, the big problem is that gfortran works (when installed via homebrew) until the moment I install Anaconda/conda. After installing Conda, gfortran stops working and I don't know how to make it work correctly. And I need both (conda and gfortran) installed and working.
If I install gcc via homebrew, gfortran works perfectly(version 12.2.0). However, when installing Conda the following message appears when I try to compile something in fortran(in this case it was just a "Hello World"):
gfortran hello.f90 -o trash
ld: unsupported tapi file type '!tapi-tbd' in YAML file '/Library/Developer/CommandLineTools/SDKs/MacOSX13.sdk/usr/lib/libSystem.tbd' for architecture arm64
collect2: error: ld returned 1 exit status
To get around this, I uninstalled gcc from homebrew and installed it using Conda. I installed the latest available version(11.2.0) using conda install gfortran=11.2.0.
gfortran —version
gfortran: warning: could not understand version 13.02.00
GNU Fortran (GCC) 11.2.0
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
And when I run "which gfortran”, it returns:
/Users/Odilon/opt/anaconda3/bin/gfortran
However, when trying to compile something the following message is displayed(I am using gfortran hello.f90 -o trash, where "trash" is just the name of the executable I chose):
gfortran: warning: could not understand version 13.02.00
ld: -rpath can only be used when targeting Mac OS X 10.5 or later
collect2: error: ld returned 1 exit status
xcode is in the last version(14.2) and Command Line tools is installed.
I need gfortran and conda to be installed and working normally on the MacOS.
How do I resolve these errors?
How can I make gfortran work normally even with Conda installed on the system?
Thanks in advance for the answers and help!
I'm trying to compile a package called Kraken on my M1 Mac running Big Sur.
MacOS fails to compile: clang gets upset. I installed gcc from Homebrew (twice) and $ brew doctor says I'm ready to go.
My path is now:
/usr/local/opt/llvm/bin:/opt/homebrew/bin:/opt/homebrew/sbin:/opt/homebrew/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Library/Apple/usr/bin:/opt/homebrew/bin.
The gcc-11 etc files exist at /opt/homebrew/bin
But /usr/local/bin does not exist!
MacOS does not update the command alias for gcc:
$ rm gcc
then
$ ln -s /opt/homebrew/bin/gcc-11 gcc
return no error
but then
$ which gcc
returns
/usr/bin/gcc
I'm lost and gather this compiler-pointing has been a mess; is there any new insight here? I've seen a bunch of entries but nothing I've tried has worked.
Hoping this is a stupid newbie (me) problem, I thank you for any help you can give.
Michael
Homebrew avoids linking binaries with the same name as system binaries like gcc(appleclang). ln -s /opt/homebrew/bin/gcc-11 /opt/homebrew/bin/gcc or tell your configurator to explicitly use gcc-11 via CC= etc. and the same for g++-11 if C++ is used.
If it's a ./configure script, you can try calling CC=/opt/homebrew/bin/gcc-11 CXX=/opt/homebrew/bin/g++-11 ./configure
if cmake then use cmake .. -DCMAKE_C_COMPILER=/opt/homebrew/bin/gcc-11 -DCMAKE_CXX_COMPILER=/opt/homebrew/gcc++-11
Also, try seeing where the homebrew gcc link points ls -l /opt/homebrew/bin/gcc
I am getting a strange error when trying to compile a simple fortran-90 file using gfortran. I am working on a macOS mojave system. I have gfortran 8.2.0 installed and I checked to be sure of this by doing the following:
Input: gfortran --version
Output: GNU Fortran (GCC) 8.2.0
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
Which indicates that gfortran installed correctly and I also confirmed this by typing simply: gfortran, into the terminal, which returns:
gfortran: fatal error: no input files
compilation terminated.
However, when I try to compile my file like so:
gfortran hello.f90 -o hello.x
I get an error which reads:
ld: library not found for -lSystem
collect2: error: ld returned 1 exit status
I've tried compiling in different ways and I also tried setting the LD_LIBRARY_PATH in .bash_profile as described by https://gcc.gnu.org/wiki/GFortranBinaries32Linux but I still get the same error. The gfortran directory has the pathname: /usr/local/gfortran, however another gfortran which is not a directory can be found in /usr/local/bin
Typing:
which gfortran
Outputs:
/usr/local/bin/gfortran
And a long list search of this directory:
Input: ls -l /usr/local/bin/gfortran
Output: lrwxr-xr-x 1 root wheel 32 15 May 14:07
/usr/local/bin/gfortran -> /usr/local/gfortran/bin/gfortran
How can I fix this where everything seems to be correctly installed?
Any help would be greatly appreciated!
On macOS Big Sur v11.1:
Relevant SO post: https://apple.stackexchange.com/questions/408999/gfortran-compiler-error-on-mac-os-big-sur
The fix is to add the stdlib to your $LIBRARY_PATH. For some reason or another it isn't in your standard $PATH anymore on 11.1.
export LIBRARY_PATH="$LIBRARY_PATH:/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib"
(or add it to login file and restart terminal).
I added this to my ~/.profile:
export SDKROOT=$(xcrun --sdk macosx --show-sdk-path)
export LIBRARY_PATH="$LIBRARY_PATH:$SDKROOT/usr/lib"
And it works.
I'll also chime in (19 Dec 2020) that I just updated from MacOS Mojave to Catalina and suddenly got this error.
It resolved itself with
brew reinstall gcc
brew reinstall gfortran
Update: I tried what was suggested and installed the gfortran build from the gcc package using homebrew which gave me a newer version of gfortran and my problem was fixed!
I had the same problem, but installing gfortran build from the gcc package using homebrew did not help. Instead, I installed the whole gcc using homebrew:
brew install gcc
and that solved the problem.
For those using MacPorts.
# Installed `gcc8` and `gcc_select`
sudo port install gcc_select gcc8
# then to create "gfortran" softlink to "gfortran-mp-8"
sudo port select --set gcc gcc8
# and added to my .profile
export LIBRARY_PATH="$LIBRARY_PATH:/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib"
I did ls -l /Library/Developer/CommandLineTools/SDKs/ and found that Xcode had installed one SDK for Catalina and one for Big Sur. I changed the soft link for MacOSX.sdk to point to the Catalina version.
Just placed this line at the end of .zshrc:
export LIBRARY_PATH="$LIBRARY_PATH:/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib"
and ran my Fortran code again to compile – success! The issue with -lSystem has been solved in my macOS system.
I had this problem, and I'd tried lots of thing to solve the problem, but only using these "both" commands solved it:
brew reinstall gcc
brew reinstall gfortran
I recently had this
ld: library not found for -lSystem
problem after upgrading Mac OS from v10 to v11 (Big Sur). I am using Xcode 12.3 and I used brew install gcc to install gfortran 10.2.0. I still saw the error after trying brew reinstall gcc. I was able to solve the problem using:
brew install gfortran
but I do not know why this works.
I am getting a strange error when trying to compile a simple fortran-90 file using gfortran. I am working on a macOS mojave system. I have gfortran 8.2.0 installed and I checked to be sure of this by doing the following:
Input: gfortran --version
Output: GNU Fortran (GCC) 8.2.0
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
Which indicates that gfortran installed correctly and I also confirmed this by typing simply: gfortran, into the terminal, which returns:
gfortran: fatal error: no input files
compilation terminated.
However, when I try to compile my file like so:
gfortran hello.f90 -o hello.x
I get an error which reads:
ld: library not found for -lSystem
collect2: error: ld returned 1 exit status
I've tried compiling in different ways and I also tried setting the LD_LIBRARY_PATH in .bash_profile as described by https://gcc.gnu.org/wiki/GFortranBinaries32Linux but I still get the same error. The gfortran directory has the pathname: /usr/local/gfortran, however another gfortran which is not a directory can be found in /usr/local/bin
Typing:
which gfortran
Outputs:
/usr/local/bin/gfortran
And a long list search of this directory:
Input: ls -l /usr/local/bin/gfortran
Output: lrwxr-xr-x 1 root wheel 32 15 May 14:07
/usr/local/bin/gfortran -> /usr/local/gfortran/bin/gfortran
How can I fix this where everything seems to be correctly installed?
Any help would be greatly appreciated!
On macOS Big Sur v11.1:
Relevant SO post: https://apple.stackexchange.com/questions/408999/gfortran-compiler-error-on-mac-os-big-sur
The fix is to add the stdlib to your $LIBRARY_PATH. For some reason or another it isn't in your standard $PATH anymore on 11.1.
export LIBRARY_PATH="$LIBRARY_PATH:/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib"
(or add it to login file and restart terminal).
I added this to my ~/.profile:
export SDKROOT=$(xcrun --sdk macosx --show-sdk-path)
export LIBRARY_PATH="$LIBRARY_PATH:$SDKROOT/usr/lib"
And it works.
I'll also chime in (19 Dec 2020) that I just updated from MacOS Mojave to Catalina and suddenly got this error.
It resolved itself with
brew reinstall gcc
brew reinstall gfortran
Update: I tried what was suggested and installed the gfortran build from the gcc package using homebrew which gave me a newer version of gfortran and my problem was fixed!
I had the same problem, but installing gfortran build from the gcc package using homebrew did not help. Instead, I installed the whole gcc using homebrew:
brew install gcc
and that solved the problem.
For those using MacPorts.
# Installed `gcc8` and `gcc_select`
sudo port install gcc_select gcc8
# then to create "gfortran" softlink to "gfortran-mp-8"
sudo port select --set gcc gcc8
# and added to my .profile
export LIBRARY_PATH="$LIBRARY_PATH:/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib"
I did ls -l /Library/Developer/CommandLineTools/SDKs/ and found that Xcode had installed one SDK for Catalina and one for Big Sur. I changed the soft link for MacOSX.sdk to point to the Catalina version.
Just placed this line at the end of .zshrc:
export LIBRARY_PATH="$LIBRARY_PATH:/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib"
and ran my Fortran code again to compile – success! The issue with -lSystem has been solved in my macOS system.
I had this problem, and I'd tried lots of thing to solve the problem, but only using these "both" commands solved it:
brew reinstall gcc
brew reinstall gfortran
I recently had this
ld: library not found for -lSystem
problem after upgrading Mac OS from v10 to v11 (Big Sur). I am using Xcode 12.3 and I used brew install gcc to install gfortran 10.2.0. I still saw the error after trying brew reinstall gcc. I was able to solve the problem using:
brew install gfortran
but I do not know why this works.
Since upgrading to Yosemite I cannot compile with gfortran. Initially I was getting "segmentation fault 11", then I:
Updated to gcc v.5.0 from http://hpc.sourceforge.net/
Re-installed Xcode command line utilities v.6.1.1
After doing the above, I am able to compile very simple fortran programs but the more complex code that I run gives me the following error:
gfortran: error: libgfortran.spec: No such file or directory
But in fact, the libgfortran.spec file is located in /usr/local/lib
ls /usr/local/lib | grep gfortran
libgfortran.3.dylib
libgfortran.a
libgfortran.dylib
libgfortran.la
libgfortran.spec
All of the gcc binaries are located in /usr/local/bin
which gfortran
/usr/local/bin/gfortran
And my path seems to be OK
echo $PATH
/usr/local/lib:/usr/local/bin:/usr/local:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/lib:/usr/texbin:/Users/MattCooper/bin:/Applications/MRT/bin
I also tried re-installing gcc with homebrew:
brew install gcc
Error: gcc-4.9.2 already installed
To install this version, first 'brew unlink gcc'
However, I get v. 5.0 when I ask 'gcc --version':
gcc --version
gcc (GCC) 5.0.0 20141005 (experimental)
When I try to unlink or upgrade gcc with homebrew I get a permission denied error:
brew unlink gcc
Unlinking /usr/local/Cellar/gcc/4.9.2... Error: Permission denied - /usr/local/bin/c++-4.9
similarly
brew upgrade gcc
Permission denied - /usr/local/bin/c++-4.9
Finally
which gcc
/usr/local/bin/gcc
Please help. Many thanks ahead of time. Please let me know what I've forgotten to include.
I ended up solving the problem via homebrew. I can't pinpoint the exact source of the problem but it was related to the fact that I installed gcc v4.9 from http://hpc.sourceforge.net/, then somewhere along the way I re-installed and/or updated gcc with homebrew. Then, after upgrading to Yosemite, I installed gcc v5 from http://hpc.sourceforge.net/. Somewhere within that process, the binaries within /usr/local/bin and usr/local/lib were not linked properly.
The main clue was the Permission Denied error when trying to run 'brew upgrade gcc'. I found a solution here: Brew doctor says: "Warning: /usr/local/include isn't writable."
To fix, I used:
brew doctor
which returned a bunch of directories that were not writeable, for example usr/local/lib, thus brew was unable to ugrade gcc to the v5.0 and link everything.
I went through and issued:
sudo chown -R $USER /usr/local
and did this for all of the other non-writeable directories returned by 'brew doctor'. Then, I was able to use brew to ugrade gcc:
brew upgrade gcc
During the ugrade, homebrew returned an error that stated it could not finish the upgrade because there was already an existing gfortran file located in:
/usr/local/bin/gfortran
To fix, homebrew suggested I run:
brew -link gcc
at which point everything worked. Interesting (to me, because I don't fully understand all of this) when I ask brew to clean things up, I get:
brew cleanup
Warning: Skipping (old) /usr/local/Cellar/gcc/4.9.2 due to it being linked
There's some similar information located here: How to link to a new gcc version with brew?
Similar to that user, when I look in my cellar, I find two versions of gcc, but I'm not sure if I need both
ls /usr/local/Cellar/gcc
4.9.2 4.9.2_1
I had a similar issue with similar solution. It could not find this file:
gfortran: error: libgfortran.spec: No such file or directory
So my problem was that I had installed gcc through hpc.sourceforge.net and through homebrew. I had to uninstall the homebrew version
brew uninstall gcc
Then I had to reinstall the gcc from hpc.sourceforge.net
sudo tar -xvf gcc-4.9-bin.tar.gz -C /
This worked for me when I wanted to revert to gcc 4.9 from hpc.sourceforge.net, using Yosemite.