Databases
StackOverflow2013
Postsdbo
POHow to define rules in the Makefile to compile only that *.cpp files which was modified (and their dependencies), not all *.cpp files
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POHow to define rules in the Makefile to compile only that *.cpp files which was modified (and their dependencies), not all *.cpp files
    primarykey
    data
    text
    <p>Lets say I have files:</p> <p>Libs:</p> <ul> <li>one.cpp, one.h</li> <li>two.cpp, two.h</li> <li>three.cpp, three.h</li> </ul> <p>Program:</p> <ul> <li>program.cpp</li> </ul> <p>Is there way, to create Makefile which will compile only that *.cpp which were modified from last compilation?</p> <p>Currently I have something like that:</p> <pre><code>SRCS = one.cpp two.cpp three.cpp OBJS = $(SRCS:.cpp=.o) all: $(OBJS) program .cpp.o: g++ -Wall -c $&lt; program: g++ -Wall $(OBJS) program.cpp -o program clean: rm -f $(OBJS) program </code></pre> <p>I works fine, but when I compile my program and then change two.cpp or two.h I need to run "make clean" first, because when I secondly run "make" I get:</p> <pre><code>Nothing to be done for 'all'. </code></pre> <p>I would like to change my Makefile in that way, it would recognize my changes and recompile that file and its dependencies (if one.cpp uses code from two.cpp which was modified, both files should be recompiled).</p> <p>So if I modify two.cpp, make should do:</p> <pre><code>g++ -Wall -c two.cpp g++ -Wall $(OBJS) program.cpp -o program </code></pre> <p>But if one.cpp uses code from two.cpp which was modified, make shold do:</p> <pre><code>g++ -Wall -c one.cpp g++ -Wall -c two.cpp g++ -Wall $(OBJS) program.cpp -o program </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USuser360872
    1. USuser360872
    plurals
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POHow to define rules in the Makefile to compile only that *.cpp files which was modified (and their dependencies), not all *.cpp files
      1. USJAB
      1. VTFavorite
    2. VO
      singulars
      1. POHow to define rules in the Makefile to compile only that *.cpp files which was modified (and their dependencies), not all *.cpp files
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POHow to define rules in the Makefile to compile only that *.cpp files which was modified (and their dependencies), not all *.cpp files
      1. This table or related slice is empty.
      1. VTUpMod
    1. CO(I think you mean `one.cpp`, not `first.cpp`.)
      singulars
      1. POHow to define rules in the Makefile to compile only that *.cpp files which was modified (and their dependencies), not all *.cpp files
      1. USBeta
    2. COYes, it should be one.cpp.
      singulars
      1. POHow to define rules in the Makefile to compile only that *.cpp files which was modified (and their dependencies), not all *.cpp files
      1. USuser360872
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload