libs

Tells the compiler which type of run-time library to link to.

IDE Equivalent

Windows: Libraries > Runtime Library (/libs:{static|dll|qwin|qwins}, /threads, /dbglibs)

Linux: None

Mac OS X: None

Architectures

IA-32, Intel® 64 architectures

Syntax

Linux and Mac OS X:

None

Windows:

/libs[:keyword]

Arguments

keyword

Specifies the type of run-time library to link to. Possible values are:

static	Specifies a single-threaded, static library (same as specifying /libs).
dll	Specifies a single-threaded, dynamic-link (DLL) library.
qwin	Specifies the Fortran QuickWin library.
qwins	Specifies the Fortran Standard Graphics library.

Default

/libs:static or /libs

The compiler links to a single-threaded, static run-time library.

Description

This option tells the compiler which type of run-time library to link to.

The library can be statically or dynamically loaded, multithreaded (/threads) or single-threaded, or debug (/dbglibs) or nondebug.

If you use the /libs:dll option and an unresolved reference is found in the DLL, it gets resolved when the program is executed, during program loading, reducing executable program size.

If you use the /libs:qwin or /libs:qwins option with the /dll option, the compiler issues a warning.

You cannot use the /libs:qwin option and options /libs:dll /threads.

The following table shows which options to specify for different run-time libraries:

Type of Library	Options Required	Alternate Option
Single-threaded, static	/libs:static or /libs or /static	/ML
Multithreaded	/libs:static /threads	/MT
Debug single-threaded	/libs:static /dbglibs	/MLd
Debug multithreaded	/libs:static /threads /dbglibs	/MTd
Single-threaded, dynamic-link libraries (DLLs)	/libs:dll	/MDs
Debug single-threaded, dynamic-link libraries (DLLs)	/libs:dll /dbglibs	/MDsd
Multithreaded DLLs	/libs:dll /threads	/MD
Multithreaded debug DLLs	/libs:dll /threads /dbglibs	/MDd
Fortran QuickWin multi-doc applications	/libs:qwin	/MW
Fortran standard graphics (QuickWin single-doc) applications	/libs:qwins	/MWs
Debug Fortran QuickWin multi-doc applications	/libs:qwin /dbglibs	None
Debug Fortran standard graphics (QuickWin single-doc) applications	/libs:qwins /dbglibs	None

Alternate Options

/libs:dll	Linux and Mac OS X:None Windows: /MDs
/libs:static	Linux and Mac OS X: None Windows: /ML
/libs:qwin	Linux and Mac OS X: None Windows: /MW
/libs:qwins	Linux and Mac OS X: None Windows: /MWs