gcc error output format
When compiling, gcc may output many error messages which are dazzling. Although you can locate the error in the source code in the end, you may never notice the details […]
qmake spec file qmake.conf
In my previous post what .prf files are automatically loaded by qmake, you have known that qmake will read a spec file qmake.conf before reading your .pro file. This spec […]
How does qmake generate include path?
If you have read my post “Where does Qt find header files“, you have known that qmake will generate some include paths in the makefile to compile your project. For […]
make update makefile
I have a big misunderstanding about make. I thought if I run “make” or “make -f Makefile”, make will check the first target in the makefile and possibly update targets […]
Entering directory and Leaving directory messages in make output
If you ever build a large project, you may notice the entering/leaving directory messages in the output of make command, for example: mingw32-make[2]: Entering directory ‘C:/myproject’ … mingw32-make[2]: Leaving directory […]
qmake functions, variables, and conditions
Some qmake variables, functions, and conditions are hard to know their meanings. I list here for a memo. $$replace(variable, old_string, new_string): replace old_string in variable with new_string. $$unique(variable): remove duplicated […]
percent symbol in windows bat file
Percent symbols are confusing in Windows bat scripts because they are designed with different meanings in different situations. The most occurrences of percent symbols are like %xxx%, where xxx is […]
Where does Qt find header files?
This seems an old topic. If you ever learned C programming language, you must know the search rules for the header files. The search rules of gcc for headers are […]
qt .pro.user file illustrated
When you open the .pro file of a Qt project at the first time, you will be prompted to configure the project. The “Configure Project” dialog shows you the available […]
css overflow and overflow-wrap
CSS overflow and overflow-wrap seem easy to understand, but I find no document gives you clear explanation. I mean you can understand their definition by reading those document, but only […]