--- a/configure.ac	Wed May 08 17:32:28 2024 -0400
+++ b/configure.ac	Sun May 12 16:31:07 2024 -0400
@@ -23,49 +23,65 @@
 
 
 dnl Qt?
+
+
 PKG_CHECK_MODULES([QT], [Qt5Core >= 5.7.0 Qt5Widgets Qt5Gui], [
 	QT_PATH="$(eval $PKG_CONFIG --variable=exec_prefix Qt5Core)"
 	QT_HOST_PATH="$(eval $PKG_CONFIG --variable=host_bins Qt5Core)"
-	QT_VERSION="$(eval $PKG_CONFIG --modversion Qt5Gui)"
+
 	AC_PATH_PROGS(QT_MOC,      [moc-qt5 moc],           moc,      ["${QT_HOST_PATH}" "${QT_PATH}/bin"])
 	AC_PATH_PROGS(QT_RCC,      [rcc-qt5 rcc],           rcc,      ["${QT_HOST_PATH}" "${QT_PATH}/bin"])
 	AC_PATH_PROGS(QT_UIC,      [uic-qt5 uic],           uic,      ["${QT_HOST_PATH}" "${QT_PATH}/bin"])
 	AC_PATH_PROGS(QT_LRELEASE, [lrelease-qt5 lrelease], lrelease, ["${QT_HOST_PATH}" "${QT_PATH}/bin"])
 	AC_PATH_PROGS(QT_LUPDATE,  [lupdate-qt5 lupdate],   lupdate,  ["${QT_HOST_PATH}" "${QT_PATH}/bin"])
-], [
-	AC_MSG_ERROR([${QT_PKG_ERRORS}.])
-])
 
-dnl On some platforms (see: Debian), Qt is built with
-dnl `-reduce-relocations`, which requires applications
-dnl to be built with position-independent code.
-dnl
-dnl Unfortunately there's no way to check for this
-dnl without using qmake (bleugh), so we use this check
-dnl to see if qglobal.h can be included without PIC.
+	dnl On some platforms (see: Debian), Qt is built with
+	dnl `-reduce-relocations`, which requires applications
+	dnl to be built with position-independent code.
+	dnl
+	dnl Unfortunately there's no way to check for this
+	dnl without using qmake (bleugh), so we use this check
+	dnl to see if qglobal.h can be included without PIC.
 
-AC_MSG_CHECKING([for Qt requiring -fPIC])
+	AC_MSG_CHECKING([for Qt requiring -fPIC])
 
-saved_CXXFLAGS="$CXXFLAGS"
-CXXFLAGS="$CXXFLAGS $QT_CFLAGS"
-AC_COMPILE_IFELSE(
-	[AC_LANG_PROGRAM([#include <qglobal.h>], [])],
-	[
-		AC_MSG_RESULT([no])
-		CXXFLAGS="$saved_CXXFLAGS"
-	],
-	[
-		AC_MSG_RESULT([yes])
-		CXXFLAGS="$saved_CXXFLAGS -fPIC -DPIC"
-	]
-)
+	saved_CXXFLAGS="$CXXFLAGS"
+	CXXFLAGS="$CXXFLAGS $QT_CFLAGS"
+	AC_COMPILE_IFELSE(
+		[AC_LANG_PROGRAM([#include <qglobal.h>], [])],
+		[
+			AC_MSG_RESULT([no])
+			CXXFLAGS="$saved_CXXFLAGS"
+		],
+		[
+			AC_MSG_RESULT([yes])
+			CXXFLAGS="$saved_CXXFLAGS -fPIC -DPIC"
+		]
+	)
+], [
+	PKG_CHECK_MODULES([QT], [Qt6Core Qt6Widgets Qt6Gui], [
+        QT_BIN_DIRECTORY="$(eval $PKG_CONFIG --variable=bindir Qt6Core)"
+        QT_LIBEXEC_DIRECTORY="$(eval $PKG_CONFIG --variable=libexecdir Qt6Core)"
+
+		AC_PATH_PROGS(QT_MOC, [moc], moc, ["${QT_LIBEXEC_DIRECTORY}"])
+		AC_PATH_PROGS(QT_RCC, [rcc], rcc, ["${QT_LIBEXEC_DIRECTORY}"])
+		AC_PATH_PROGS(QT_UIC, [uic], uic, ["${QT_LIBEXEC_DIRECTORY}"])
+		AC_PATH_PROGS(QT_LRELEASE, [lrelease], lrelease, ["${QT_BIN_DIRECTORY}"])
+		AC_PATH_PROGS(QT_LUPDATE, [lupdate], lupdate, ["${QT_BIN_DIRECTORY}"])
+
+		dnl in my testing Qt 6 seems to require PIC unconditionally...
+		CXXFLAGS="$CXXFLAGS -fPIC"
+	], [
+		AC_MSG_ERROR([${QT_PKG_ERRORS}.])
+	])
+])
 
 dnl need this for moc
 AC_PROG_MKDIR_P
 AC_SUBST([MKDIR_P])
 
 dnl libcurl?
-LIBCURL_CHECK_CONFIG([yes], [7.7.2], [have_libcurl=yes], [have_libcurl=no])
+LIBCURL_CHECK_CONFIG([yes], [7.87.0], [have_libcurl=yes], [have_libcurl=no])
 
 AS_IF([test "x$have_libcurl" = "xno"], [AC_MSG_ERROR([*** libcurl not found.])])