configure: generalize command line overrides of library parameters

the outdated ones remain for backwards compatibility; some remain
unchanged.

Task-number: QTBUG-30083
Change-Id: Ia596b854d26b00fcb4f48df0da7ad893650ac1c8
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

config_help.txt

@@ -1,7 +1,10 @@
 Usage:  configure [options] [assignments]
 
 Configure understands variable assignments like VAR=value on the command line.
-The variables are mentioned in the descriptions of the options they relate to.
+Each uppercased library name (obtainable with -list-libraries) supports the
+suffixes _INCDIR, _LIBDIR, _PREFIX (INCDIR=PREFIX/include, LIBDIR=PREFIX/lib),
+_LIBS, and - on Windows and Darwin - _LIBS_DEBUG and _LIBS_RELEASE. E.g.,
+ICU_PREFIX=/opt/icu42 ICU_LIBS="-licui18n -licuuc -licudata".
 
 It is also possible to manipulate any QMAKE_* variable, to amend the values
 from the mkspec for the build of Qt itself, e.g., QMAKE_CXXFLAGS+=-g3.
@@ -187,7 +190,6 @@ Component selection:
                          [default on Android and Windows]
   -dbus-linked ......... Build Qt D-Bus and link to libdbus-1 [auto]
   -dbus-runtime ........ Build Qt D-Bus and dynamically load libdbus-1 [no]
-                         DBUS_PATH= DBUS_HOST_PATH=
   -accessibility ....... Enable accessibility support [yes]
                          Note: Disabling accessibility is not recommended.
   -qml-debug ........... Enable QML debugging support [yes]
@@ -207,7 +209,6 @@ Core options:
   -pps ................. Enable PPS support [auto] (QNX only)
   -pcre ................ Select used libpcre3 [system/qt]
   -zlib ................ Select used zlib [system/qt]
-                         ZLIB_LIBS=
 
   Logging backends:
     -journald .......... Enable journald support [no] (Unix only)
@@ -220,8 +221,6 @@ Network options:
   -no-openssl .......... Do not use OpenSSL [default on Apple and WinRT]
   -openssl-linked ...... Use OpenSSL and link to libssl [no]
   -openssl-runtime ..... Use OpenSSL and dynamically load libssl [auto]
-                         OPENSSL_PATH= OPENSSL_LIBS=, and on Windows also
-                         OPENSSL_LIBS_DEBUG= OPENSSL_LIBS_RELEASE=
   -securetransport ..... Use SecureTransport [auto] (Apple only)
 
   -sctp ................ Enable SCTP support [no]
@@ -289,5 +288,4 @@ Database options:
   -sql-<driver> ........ Enable SQL <driver> plugin. Supported drivers:
                          db2 ibase mysql oci odbc psql sqlite2 sqlite tds
                          [all auto]
-                         MYSQL_PATH= PSQL_LIBS= SYBASE= SYBASE_LIBS=
   -sqlite .............. Select used sqlite3 [system/qt]

configure.json

@@ -20,8 +20,7 @@
     "commandline": {
         "assignments": {
             "DBUS_HOST_PATH": "host_dbus.prefix",
-            "DBUS_PATH": "dbus.prefix",
-            "ZLIB_LIBS": "zlib.libs"
+            "DBUS_PATH": "dbus.prefix"
         },
         "custom": "qmakeArgs",
         "options": {

mkspecs/features/qt_configure.prf

@@ -401,6 +401,7 @@ defineReplace(qtConfPrepareArgs) {
 }
 
 defineTest(qtConfSetupLibraries) {
+    asspfx = $${currentConfig}.commandline.assignments
     for (l, $${currentConfig}.libraries._KEYS_) {
         lpfx = $${currentConfig}.libraries.$${l}
         # 'export' may be omitted, in which case it falls back to the library's name
@@ -439,9 +440,30 @@ defineTest(qtConfSetupLibraries) {
     $${currentConfig}.exports._KEYS_ = $$unique($${currentConfig}.exports._KEYS_)
     export($${currentConfig}.exports._KEYS_)
 
+    for (alias, $${currentConfig}.exports._KEYS_) {
+        ua = $$upper($$alias)
+        $${asspfx}._KEYS_ += \
+            $${ua}_PREFIX $${ua}_INCDIR $${ua}_LIBDIR \
+            $${ua}_LIBS $${ua}_LIBS_DEBUG $${ua}_LIBS_RELEASE
+        uapfx = $${asspfx}.$${ua}
+        $${uapfx}_PREFIX = $${alias}.prefix
+        $${uapfx}_INCDIR = $${alias}.incdir
+        $${uapfx}_LIBDIR = $${alias}.libdir
+        $${uapfx}_LIBS = $${alias}.libs
+        $${uapfx}_LIBS_DEBUG = $${alias}.libs.debug
+        $${uapfx}_LIBS_RELEASE = $${alias}.libs.release
+        export($${uapfx}_PREFIX)
+        export($${uapfx}_INCDIR)
+        export($${uapfx}_LIBDIR)
+        export($${uapfx}_LIBS)
+        export($${uapfx}_LIBS_DEBUG)
+        export($${uapfx}_LIBS_RELEASE)
+    }
+    export($${asspfx}._KEYS_)
+
     # reverse mapping for assignments on command line.
-    for (a, $${currentConfig}.commandline.assignments._KEYS_) {
-        apfx = $${currentConfig}.commandline.assignments.$${a}
+    for (a, $${asspfx}._KEYS_) {
+        apfx = $${asspfx}.$${a}
         ra = config.commandline.rev_assignments.$$eval($$apfx)
         $$ra = $$a
         export($$ra)
@@ -494,6 +516,18 @@ defineTest(qtConfLibrary_inline) {
         export($${1}.libs)
     }
 
+    incdir = $$val_escape(config.input.$${input}.incdir)
+    !isEmpty(incdir) {
+        $${1}.includedir = $$incdir
+        export($${1}.includedir)
+    }
+
+    libdir = $$val_escape(config.input.$${input}.libdir)
+    !isEmpty(libdir) {
+        $${1}.libs = "-L$$libdir $$eval($${1}.libs)"
+        export($${1}.libs)
+    }
+
     return(true)
 }
 

src/network/configure.json

@@ -7,9 +7,6 @@
 
     "commandline": {
         "assignments": {
-            "OPENSSL_LIBS": "openssl.libs",
-            "OPENSSL_LIBS_DEBUG": "openssl.libs.debug",
-            "OPENSSL_LIBS_RELEASE": "openssl.libs.release",
             "OPENSSL_PATH": "openssl.prefix"
         },
         "options": {

src/sql/configure.json

@@ -8,7 +8,6 @@
     "commandline": {
         "assignments": {
             "MYSQL_PATH": "mysql.prefix",
-            "PSQL_LIBS": "psql.libs",
             "SYBASE": "tds.prefix",
             "SYBASE_LIBS": "tds.libs"
         },