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• Broken project in XCODE objective c

  

  Hi, Does someone have a clue what is the reason for this broken project in xcode 13.3.1 The tab with the project settings, properties is empty!!! Check the screenshot. No errors when the project is loaded. The project can be build but the project settings tab is empty.
• Can I use Xcode font on QtCreator?

  After using QtCreator for a long time on Windows I was comfortable with it. But now I'm using it on macOS too and it feels different.

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• OSX + Java + OpenSSL + org.apache.commons:commons-crypto = SegFault in OpenSslNative:initIDs

  I had a simple Java class using Apache:commons-crypto to do encryption/decryption that was SegFaulting on me.

  On OSX, I used Homebrew to install the latest OpenSSL to use.

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  https://github.com/apache/commons-crypto/blob/master/src/main/native/org/apache/commons/crypto/cipher/OpenSslNative.c https://github.com/apache/commons-crypto/blob/master/lib/include/config.h

  Scanning through the code, I found that on OSX, the "libcrypto.dylib" is referenced. That library was correctly linked into the /usr/local/opt/openssl/lib directory.
• Appending values to existing values of environment variables in go

  How can I append another value to an existing value of a go environment variable?

  If CGO_CXXFLAGS has the value "-I/blah/blah"

  Since the following doesn't work

  $ go env -w CGO_CXXFLAGS="$CGO_CXXFLAGS -I/foo/bar"
  

  I want to find a proper way to CGO_CXXFLAGS have the value "-I/blah/blah -I/foo/bar"

  by avoiding to simply re-set all the values plus the new one, such as in:

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• Update global variable from while loop

  Having trouble updating my global variable in this shell script. I have read that the variables inside the loops run on a sub shell. Can someone clarify how this works and what steps I should take.

  USER_NonRecursiveSum=0.0
  
  while [ $lineCount -le $(($USER_Num)) ] 
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• How do you use mktemp to create directory in Makefile?

  edit:

  Solved by awesome answer below. Expand the variables using := instead of =

  mktemp: TEST:=$(shell mktemp -d)
  mktemp:
      echo $(TEST)
      touch $(TEST)/test.txt
      ls $(TEST)
      cat $(TEST)/test.txt
      rm -rf $(TEST)
  

  original question:

  This is a Makefile piece of code of how someone may use mktemp in a Makefile

  TEST=$(shell mktemp -d)
  mktemp:
      echo $(TEST)
      touch $(TEST)/test.txt
      ls $(TEST)
      cat $(TEST)/test.txt
      rm -rf $(TEST)
  

  This is an example output

  ❯ make mktemp 
  echo /var/folders/62/wkysd_4n0w57ljl9ycfsd9cc0000gn/T/tmp.tQI5EeyW
  /var/folders/62/wkysd_4n0w57ljl9ycfsd9cc0000gn/T/tmp.tQI5EeyW
  touch /var/folders/62/wkysd_4n0w57ljl9ycfsd9cc0000gn/T/tmp.lVL3N8Rp/test.txt
  ls /var/folders/62/wkysd_4n0w57ljl9ycfsd9cc0000gn/T/tmp.sBW9FzgD
  cat /var/folders/62/wkysd_4n0w57ljl9ycfsd9cc0000gn/T/tmp.Ti53SWSw/test.txt
  cat: /var/folders/62/wkysd_4n0w57ljl9ycfsd9cc0000gn/T/tmp.Ti53SWSw/test.txt: No such file or directory
  make: *** [mktemp] Error 1
  

  The expectation is that cat /var/folders/62/wkysd_4n0w57ljl9ycfsd9cc0000gn/T/tmp.Ti53SWSw/test.txt would not error.

  How can mktemp be used in this case?
• No manual entry msg - Fedora

  I'm trying on to use the man pages on RHEL.

  Every time I'm searching for manuals, I'm getting this error message:

  # man ls
  No manual entry for ls
  

  I've tried those solutions:

  1. mandb -c

  # mandb -c
  Processing manual pages under /usr/share/man...
  Updating index cache for path `/usr/share/man/man2'. Wait...done.
  Checking for stray cats under /usr/share/man...
  Checking for stray cats under /var/cache/man...
  Processing manual pages under /usr/local/share/man...
  Updating index cache for path `/usr/local/share/man/man2'. Wait...done.
  Checking for stray cats under /usr/local/share/man...
  Checking for stray cats under /var/cache/man/local...
  41 man subdirectories contained newer manual pages.
  0 manual pages were added.
  0 stray cats were added.
  

  2. To set the the $MANPATH to the /usr/share/man path

  3. yum install man-pages

  What else can I do?
• Man pages not being installed in python docker image

  I am trying to extend a python docker image by installing some apt packages. However, I'm running into problems related to missing manual pages. Man pages don't seem to be getting installed (even with man-db installed).

  If I run the following:

  docker run -it python:3.9-slim@sha256:2c018e29a8eada75e855d78641adda978a2c0a035fd928e281e1240144e8a337 /bin/bash
  apt-get update
  apt-get install -y man-db
  apt-get install -y zzuf
  

  dpkg claims that it has installed some man pages (at least -L links them)

  > dpkg -L zzuf | grep man1
  /usr/share/man/man1
  /usr/share/man/man1/zzat.1.gz
  /usr/share/man/man1/zzuf.1.gz
  

  But they don't seem to actually be installed (and /usr/share/man is empty)

  > ls /usr/share/man
  

  Why is this happening and how do I get manual pages to be installed?

  Feedback

  How to install man pages on an ubuntu docker image? is addressing a problem with the same cause: dpkg can be configured to not install files matching certain packages.