Building the entire project

[vermarajeev]

I used this and it runs the makefile

PRE_TARGETDEPS += libcryp.a
MKFL = cryptoPP/GNUmakefile
tst.input = MKFL
tst.commands = cd cryptoPP/ && make
tst.CONFIG = no_link
tst.output = libcryp.a
QMAKE_EXTRA_UNIX_COMPILERS += tst

PRE_TARGETDEPS += libcryp.a
MKFL = cryptoPP/GNUmakefile
tst.input = MKFL
tst.commands = cd cryptoPP/ && make
tst.CONFIG = no_link
tst.output = libcryp.a
QMAKE_EXTRA_UNIX_COMPILERS += tst

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It creates the static library libcryp.a. Evenrything goes on fine
but at last this error occurs

[raj@fedora4 cmbedit]# qmake ce.pro
[raj@fedora4 cmbedit]# make clean
rm -f *~ core *.core
[raj@fedora4 cmbedit]# make
cd cryptoPP/ && make
make[1]: Entering directory `/raj/rajTest/cmbedit/cryptoPP'
make[1]: Nothing to be done for `all'.
make[1]: Leaving directory `/raj/rajTest/cmbedit/cryptoPP'
g++  -o ce     -L/usr/lib/qt-3.3/lib -L/usr/X11R6/lib -lqt-mt -lXext -lX11 -lm
/usr/lib/gcc/i386-redhat-linux/4.0.0/../../../crt1.o(.text+0x18): In function
`_start':
: undefined reference to `main'
collect2: ld returned 1 exit status
make: *** [ce] Error 1

[raj@fedora4 cmbedit]# qmake ce.pro
[raj@fedora4 cmbedit]# make clean
rm -f *~ core *.core
[raj@fedora4 cmbedit]# make
cd cryptoPP/ && make
make[1]: Entering directory `/raj/rajTest/cmbedit/cryptoPP'
make[1]: Nothing to be done for `all'.
make[1]: Leaving directory `/raj/rajTest/cmbedit/cryptoPP'
g++  -o ce     -L/usr/lib/qt-3.3/lib -L/usr/X11R6/lib -lqt-mt -lXext -lX11 -lm
/usr/lib/gcc/i386-redhat-linux/4.0.0/../../../crt1.o(.text+0x18): In function
`_start':
: undefined reference to `main'
collect2: ld returned 1 exit status
make: *** [ce] Error 1

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What is wrong here now???

[camel]

make[1]: Leaving directory `/raj/rajTest/cmbedit/cryptoPP'
g++  -o ce     -L/usr/lib/qt-3.3/lib -L/usr/X11R6/lib -lqt-mt -lXext -lX11 -lm
/usr/lib/gcc/i386-redhat-linux/4.0.0/../../../crt1.o(.text+0x18): In function
`_start':
: undefined reference to `main'
collect2: ld returned 1 exit status
make: *** [ce] Error 1

make[1]: Leaving directory `/raj/rajTest/cmbedit/cryptoPP'
g++  -o ce     -L/usr/lib/qt-3.3/lib -L/usr/X11R6/lib -lqt-mt -lXext -lX11 -lm
/usr/lib/gcc/i386-redhat-linux/4.0.0/../../../crt1.o(.text+0x18): In function
`_start':
: undefined reference to `main'
collect2: ld returned 1 exit status
make: *** [ce] Error 1

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What is wrong here now???

I had these kind of problems, when I had an "empty" pro file. i.e. when I had no targets/sources in the file itself.

Qmake tries to compile "No Source File", and then tries to link it. Of course, when you do not have no source, you did not define a main function...which your linker complains about.

Add your real project infos to the pro file and the problem should vanish...