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I have code that calls g_spawn_sync and sets an environment variable. The program that I am spawning simply dumps out the environment and exits. I found some odd behavior when running this test app on Cygwin, if I set any random variable, like "HELLO=world" it is not passed to the child. However, if I set PATH, I get it set along with 2 other variables. Attached is my test code that demonstrates the issue. Environ.c - child program that dumps the environment Gspawn_env_test.cpp - program that spawns environ.c and reads the output Make - simple shell script that builds the test apps Cygwin 1.7.9 results: $ ./gspawn_env_test.exe ** (process:5080): DEBUG: Calling my_environ with envp set to HELLO=world ** (process:5080): DEBUG: result: ** (process:5080): DEBUG: ------------------------------------ ** (process:5080): DEBUG: Calling my_environ with envp set to PATH=/usr/bin ** (process:5080): DEBUG: result: PATH=/usr/bin SYSTEMROOT=C:\Windows WINDIR=C:\Windows ** (process:5080): DEBUG: ------------------------------------ Ubuntu 10.04 results: [mfisch@toaster ~/gspawn_issue]$ ./gspawn_env_test ** (process:29580): DEBUG: Calling my_environ with envp set to HELLO=world ** (process:29580): DEBUG: result: HELLO=world ** (process:29580): DEBUG: ------------------------------------ ** (process:29580): DEBUG: Calling my_environ with envp set to PATH=/usr/bin ** (process:29580): DEBUG: result: PATH=/usr/bin ** (process:29580): DEBUG: ------------------------------------
Attachment:
cygcheck.out
Description: cygcheck.out
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environ.c
Description: environ.c
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gspawn_env_test.cpp
Description: gspawn_env_test.cpp
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make
Description: make
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